Transmission Flush
Guest
Posts: n/a
Re: Transmission Flush
"Matt Whiting" <whiting@epix.net> wrote in message
news:FtdBf.5480$lb.475148@news1.epix.net...
> suresh wrote:
> > Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
back
> > with a "strong" recommendation to do transmission flush.
> >
> > Went to a quick oil change place and did a $79.99 Automatic Transmission
> > Flush.
> >
> > Now, my friend says Automatic Flush is not a flush and I should have
done
> > a full flush.
> >
> > Did I do something foolish ? SHould I go back and spend more and do a
full
> > flush?
>
> Personally, if you change the transmission fluid and filter on a
> reasonable schedule, these flushes are a waste of money, IMO.
>
Actually, if you change your ATF properly (IMHO), you do a flush anyway.
But... it was my understanding there is no replaceable filter in the Hyundai
trannies.
--
-Mike-
mmarlowREMOVE@alltel.net
Guest
Posts: n/a
Re: Transmission Flush
Mike Marlow wrote:
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:FtdBf.5480$lb.475148@news1.epix.net...
>
>>suresh wrote:
>>
>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>
> back
>
>>>with a "strong" recommendation to do transmission flush.
>>>
>>>Went to a quick oil change place and did a $79.99 Automatic Transmission
>>>Flush.
>>>
>>>Now, my friend says Automatic Flush is not a flush and I should have
>
> done
>
>>>a full flush.
>>>
>>>Did I do something foolish ? SHould I go back and spend more and do a
>
> full
>
>>>flush?
>>
>>Personally, if you change the transmission fluid and filter on a
>>reasonable schedule, these flushes are a waste of money, IMO.
>>
>
>
> Actually, if you change your ATF properly (IMHO), you do a flush anyway.
> But... it was my understanding there is no replaceable filter in the Hyundai
> trannies.
>
No, you don't flush all of the old fluid from the tranny. Most
automatics drain at best half of the fluid.
Matt
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:FtdBf.5480$lb.475148@news1.epix.net...
>
>>suresh wrote:
>>
>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>
> back
>
>>>with a "strong" recommendation to do transmission flush.
>>>
>>>Went to a quick oil change place and did a $79.99 Automatic Transmission
>>>Flush.
>>>
>>>Now, my friend says Automatic Flush is not a flush and I should have
>
> done
>
>>>a full flush.
>>>
>>>Did I do something foolish ? SHould I go back and spend more and do a
>
> full
>
>>>flush?
>>
>>Personally, if you change the transmission fluid and filter on a
>>reasonable schedule, these flushes are a waste of money, IMO.
>>
>
>
> Actually, if you change your ATF properly (IMHO), you do a flush anyway.
> But... it was my understanding there is no replaceable filter in the Hyundai
> trannies.
>
No, you don't flush all of the old fluid from the tranny. Most
automatics drain at best half of the fluid.
Matt
Guest
Posts: n/a
Re: Transmission Flush
Mike Marlow wrote:
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:FtdBf.5480$lb.475148@news1.epix.net...
>
>>suresh wrote:
>>
>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>
> back
>
>>>with a "strong" recommendation to do transmission flush.
>>>
>>>Went to a quick oil change place and did a $79.99 Automatic Transmission
>>>Flush.
>>>
>>>Now, my friend says Automatic Flush is not a flush and I should have
>
> done
>
>>>a full flush.
>>>
>>>Did I do something foolish ? SHould I go back and spend more and do a
>
> full
>
>>>flush?
>>
>>Personally, if you change the transmission fluid and filter on a
>>reasonable schedule, these flushes are a waste of money, IMO.
>>
>
>
> Actually, if you change your ATF properly (IMHO), you do a flush anyway.
> But... it was my understanding there is no replaceable filter in the Hyundai
> trannies.
>
No, you don't flush all of the old fluid from the tranny. Most
automatics drain at best half of the fluid.
Matt
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:FtdBf.5480$lb.475148@news1.epix.net...
>
>>suresh wrote:
>>
>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>
> back
>
>>>with a "strong" recommendation to do transmission flush.
>>>
>>>Went to a quick oil change place and did a $79.99 Automatic Transmission
>>>Flush.
>>>
>>>Now, my friend says Automatic Flush is not a flush and I should have
>
> done
>
>>>a full flush.
>>>
>>>Did I do something foolish ? SHould I go back and spend more and do a
>
> full
>
>>>flush?
>>
>>Personally, if you change the transmission fluid and filter on a
>>reasonable schedule, these flushes are a waste of money, IMO.
>>
>
>
> Actually, if you change your ATF properly (IMHO), you do a flush anyway.
> But... it was my understanding there is no replaceable filter in the Hyundai
> trannies.
>
No, you don't flush all of the old fluid from the tranny. Most
automatics drain at best half of the fluid.
Matt
Guest
Posts: n/a
Re: Transmission Flush
Mike Marlow wrote:
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:FtdBf.5480$lb.475148@news1.epix.net...
>
>>suresh wrote:
>>
>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>
> back
>
>>>with a "strong" recommendation to do transmission flush.
>>>
>>>Went to a quick oil change place and did a $79.99 Automatic Transmission
>>>Flush.
>>>
>>>Now, my friend says Automatic Flush is not a flush and I should have
>
> done
>
>>>a full flush.
>>>
>>>Did I do something foolish ? SHould I go back and spend more and do a
>
> full
>
>>>flush?
>>
>>Personally, if you change the transmission fluid and filter on a
>>reasonable schedule, these flushes are a waste of money, IMO.
>>
>
>
> Actually, if you change your ATF properly (IMHO), you do a flush anyway.
> But... it was my understanding there is no replaceable filter in the Hyundai
> trannies.
>
No, you don't flush all of the old fluid from the tranny. Most
automatics drain at best half of the fluid.
Matt
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:FtdBf.5480$lb.475148@news1.epix.net...
>
>>suresh wrote:
>>
>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>
> back
>
>>>with a "strong" recommendation to do transmission flush.
>>>
>>>Went to a quick oil change place and did a $79.99 Automatic Transmission
>>>Flush.
>>>
>>>Now, my friend says Automatic Flush is not a flush and I should have
>
> done
>
>>>a full flush.
>>>
>>>Did I do something foolish ? SHould I go back and spend more and do a
>
> full
>
>>>flush?
>>
>>Personally, if you change the transmission fluid and filter on a
>>reasonable schedule, these flushes are a waste of money, IMO.
>>
>
>
> Actually, if you change your ATF properly (IMHO), you do a flush anyway.
> But... it was my understanding there is no replaceable filter in the Hyundai
> trannies.
>
No, you don't flush all of the old fluid from the tranny. Most
automatics drain at best half of the fluid.
Matt
Guest
Posts: n/a
Re: Transmission Flush
"Matt Whiting" <whiting@epix.net> wrote in message
news:yUeBf.5483$lb.475664@news1.epix.net...
> Mike Marlow wrote:
>
> > "Matt Whiting" <whiting@epix.net> wrote in message
> > news:FtdBf.5480$lb.475148@news1.epix.net...
> >
> >>suresh wrote:
> >>
> >>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
> >
> > back
> >
> >>>with a "strong" recommendation to do transmission flush.
> >>>
> >>>Went to a quick oil change place and did a $79.99 Automatic
Transmission
> >>>Flush.
> >>>
> >>>Now, my friend says Automatic Flush is not a flush and I should have
> >
> > done
> >
> >>>a full flush.
> >>>
> >>>Did I do something foolish ? SHould I go back and spend more and do a
> >
> > full
> >
> >>>flush?
> >>
> >>Personally, if you change the transmission fluid and filter on a
> >>reasonable schedule, these flushes are a waste of money, IMO.
> >>
> >
> >
> > Actually, if you change your ATF properly (IMHO), you do a flush anyway.
> > But... it was my understanding there is no replaceable filter in the
Hyundai
> > trannies.
> >
>
> No, you don't flush all of the old fluid from the tranny. Most
> automatics drain at best half of the fluid.
>
No Matt - what I meant was that the way I service my tranny is to drain it,
fill it, and break the line at the radiator and start the car to pump it
(while keeping it topped off) until it flows nice bright new fluid. That's
a flush. Draining a tranny is not a flush.
--
-Mike-
mmarlowREMOVE@alltel.net
Guest
Posts: n/a
Re: Transmission Flush
"Matt Whiting" <whiting@epix.net> wrote in message
news:yUeBf.5483$lb.475664@news1.epix.net...
> Mike Marlow wrote:
>
> > "Matt Whiting" <whiting@epix.net> wrote in message
> > news:FtdBf.5480$lb.475148@news1.epix.net...
> >
> >>suresh wrote:
> >>
> >>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
> >
> > back
> >
> >>>with a "strong" recommendation to do transmission flush.
> >>>
> >>>Went to a quick oil change place and did a $79.99 Automatic
Transmission
> >>>Flush.
> >>>
> >>>Now, my friend says Automatic Flush is not a flush and I should have
> >
> > done
> >
> >>>a full flush.
> >>>
> >>>Did I do something foolish ? SHould I go back and spend more and do a
> >
> > full
> >
> >>>flush?
> >>
> >>Personally, if you change the transmission fluid and filter on a
> >>reasonable schedule, these flushes are a waste of money, IMO.
> >>
> >
> >
> > Actually, if you change your ATF properly (IMHO), you do a flush anyway.
> > But... it was my understanding there is no replaceable filter in the
Hyundai
> > trannies.
> >
>
> No, you don't flush all of the old fluid from the tranny. Most
> automatics drain at best half of the fluid.
>
No Matt - what I meant was that the way I service my tranny is to drain it,
fill it, and break the line at the radiator and start the car to pump it
(while keeping it topped off) until it flows nice bright new fluid. That's
a flush. Draining a tranny is not a flush.
--
-Mike-
mmarlowREMOVE@alltel.net
Guest
Posts: n/a
Re: Transmission Flush
"Matt Whiting" <whiting@epix.net> wrote in message
news:yUeBf.5483$lb.475664@news1.epix.net...
> Mike Marlow wrote:
>
> > "Matt Whiting" <whiting@epix.net> wrote in message
> > news:FtdBf.5480$lb.475148@news1.epix.net...
> >
> >>suresh wrote:
> >>
> >>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
> >
> > back
> >
> >>>with a "strong" recommendation to do transmission flush.
> >>>
> >>>Went to a quick oil change place and did a $79.99 Automatic
Transmission
> >>>Flush.
> >>>
> >>>Now, my friend says Automatic Flush is not a flush and I should have
> >
> > done
> >
> >>>a full flush.
> >>>
> >>>Did I do something foolish ? SHould I go back and spend more and do a
> >
> > full
> >
> >>>flush?
> >>
> >>Personally, if you change the transmission fluid and filter on a
> >>reasonable schedule, these flushes are a waste of money, IMO.
> >>
> >
> >
> > Actually, if you change your ATF properly (IMHO), you do a flush anyway.
> > But... it was my understanding there is no replaceable filter in the
Hyundai
> > trannies.
> >
>
> No, you don't flush all of the old fluid from the tranny. Most
> automatics drain at best half of the fluid.
>
No Matt - what I meant was that the way I service my tranny is to drain it,
fill it, and break the line at the radiator and start the car to pump it
(while keeping it topped off) until it flows nice bright new fluid. That's
a flush. Draining a tranny is not a flush.
--
-Mike-
mmarlowREMOVE@alltel.net
Guest
Posts: n/a
Re: Transmission Flush
Mike Marlow wrote:
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:yUeBf.5483$lb.475664@news1.epix.net...
>
>>Mike Marlow wrote:
>>
>>
>>>"Matt Whiting" <whiting@epix.net> wrote in message
>>>news:FtdBf.5480$lb.475148@news1.epix.net...
>>>
>>>
>>>>suresh wrote:
>>>>
>>>>
>>>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>>>
>>>back
>>>
>>>
>>>>>with a "strong" recommendation to do transmission flush.
>>>>>
>>>>>Went to a quick oil change place and did a $79.99 Automatic
>
> Transmission
>
>>>>>Flush.
>>>>>
>>>>>Now, my friend says Automatic Flush is not a flush and I should have
>>>
>>>done
>>>
>>>
>>>>>a full flush.
>>>>>
>>>>>Did I do something foolish ? SHould I go back and spend more and do a
>>>
>>>full
>>>
>>>
>>>>>flush?
>>>>
>>>>Personally, if you change the transmission fluid and filter on a
>>>>reasonable schedule, these flushes are a waste of money, IMO.
>>>>
>>>
>>>
>>>Actually, if you change your ATF properly (IMHO), you do a flush anyway.
>>>But... it was my understanding there is no replaceable filter in the
>
> Hyundai
>
>>>trannies.
>>>
>>
>>No, you don't flush all of the old fluid from the tranny. Most
>>automatics drain at best half of the fluid.
>>
>
>
> No Matt - what I meant was that the way I service my tranny is to drain it,
> fill it, and break the line at the radiator and start the car to pump it
> (while keeping it topped off) until it flows nice bright new fluid. That's
> a flush. Draining a tranny is not a flush.
I've heard of folks doing that successfully, but it is also a way to
shorten the life of the transmission if you let that pump get low enough
on oil to pump air. Also, I don't think you will exchange all of the
fluid in the TC by doing this.
In any event, it is completely unnecessary. Transmissions don't
contaminate the oil anywhere near what engines do with their combustion
byproducts. Changing half of the fluid at the recommended intervals is
plenty good enough maintenance.
Matt
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:yUeBf.5483$lb.475664@news1.epix.net...
>
>>Mike Marlow wrote:
>>
>>
>>>"Matt Whiting" <whiting@epix.net> wrote in message
>>>news:FtdBf.5480$lb.475148@news1.epix.net...
>>>
>>>
>>>>suresh wrote:
>>>>
>>>>
>>>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>>>
>>>back
>>>
>>>
>>>>>with a "strong" recommendation to do transmission flush.
>>>>>
>>>>>Went to a quick oil change place and did a $79.99 Automatic
>
> Transmission
>
>>>>>Flush.
>>>>>
>>>>>Now, my friend says Automatic Flush is not a flush and I should have
>>>
>>>done
>>>
>>>
>>>>>a full flush.
>>>>>
>>>>>Did I do something foolish ? SHould I go back and spend more and do a
>>>
>>>full
>>>
>>>
>>>>>flush?
>>>>
>>>>Personally, if you change the transmission fluid and filter on a
>>>>reasonable schedule, these flushes are a waste of money, IMO.
>>>>
>>>
>>>
>>>Actually, if you change your ATF properly (IMHO), you do a flush anyway.
>>>But... it was my understanding there is no replaceable filter in the
>
> Hyundai
>
>>>trannies.
>>>
>>
>>No, you don't flush all of the old fluid from the tranny. Most
>>automatics drain at best half of the fluid.
>>
>
>
> No Matt - what I meant was that the way I service my tranny is to drain it,
> fill it, and break the line at the radiator and start the car to pump it
> (while keeping it topped off) until it flows nice bright new fluid. That's
> a flush. Draining a tranny is not a flush.
I've heard of folks doing that successfully, but it is also a way to
shorten the life of the transmission if you let that pump get low enough
on oil to pump air. Also, I don't think you will exchange all of the
fluid in the TC by doing this.
In any event, it is completely unnecessary. Transmissions don't
contaminate the oil anywhere near what engines do with their combustion
byproducts. Changing half of the fluid at the recommended intervals is
plenty good enough maintenance.
Matt
Guest
Posts: n/a
Re: Transmission Flush
Mike Marlow wrote:
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:yUeBf.5483$lb.475664@news1.epix.net...
>
>>Mike Marlow wrote:
>>
>>
>>>"Matt Whiting" <whiting@epix.net> wrote in message
>>>news:FtdBf.5480$lb.475148@news1.epix.net...
>>>
>>>
>>>>suresh wrote:
>>>>
>>>>
>>>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>>>
>>>back
>>>
>>>
>>>>>with a "strong" recommendation to do transmission flush.
>>>>>
>>>>>Went to a quick oil change place and did a $79.99 Automatic
>
> Transmission
>
>>>>>Flush.
>>>>>
>>>>>Now, my friend says Automatic Flush is not a flush and I should have
>>>
>>>done
>>>
>>>
>>>>>a full flush.
>>>>>
>>>>>Did I do something foolish ? SHould I go back and spend more and do a
>>>
>>>full
>>>
>>>
>>>>>flush?
>>>>
>>>>Personally, if you change the transmission fluid and filter on a
>>>>reasonable schedule, these flushes are a waste of money, IMO.
>>>>
>>>
>>>
>>>Actually, if you change your ATF properly (IMHO), you do a flush anyway.
>>>But... it was my understanding there is no replaceable filter in the
>
> Hyundai
>
>>>trannies.
>>>
>>
>>No, you don't flush all of the old fluid from the tranny. Most
>>automatics drain at best half of the fluid.
>>
>
>
> No Matt - what I meant was that the way I service my tranny is to drain it,
> fill it, and break the line at the radiator and start the car to pump it
> (while keeping it topped off) until it flows nice bright new fluid. That's
> a flush. Draining a tranny is not a flush.
I've heard of folks doing that successfully, but it is also a way to
shorten the life of the transmission if you let that pump get low enough
on oil to pump air. Also, I don't think you will exchange all of the
fluid in the TC by doing this.
In any event, it is completely unnecessary. Transmissions don't
contaminate the oil anywhere near what engines do with their combustion
byproducts. Changing half of the fluid at the recommended intervals is
plenty good enough maintenance.
Matt
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:yUeBf.5483$lb.475664@news1.epix.net...
>
>>Mike Marlow wrote:
>>
>>
>>>"Matt Whiting" <whiting@epix.net> wrote in message
>>>news:FtdBf.5480$lb.475148@news1.epix.net...
>>>
>>>
>>>>suresh wrote:
>>>>
>>>>
>>>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>>>
>>>back
>>>
>>>
>>>>>with a "strong" recommendation to do transmission flush.
>>>>>
>>>>>Went to a quick oil change place and did a $79.99 Automatic
>
> Transmission
>
>>>>>Flush.
>>>>>
>>>>>Now, my friend says Automatic Flush is not a flush and I should have
>>>
>>>done
>>>
>>>
>>>>>a full flush.
>>>>>
>>>>>Did I do something foolish ? SHould I go back and spend more and do a
>>>
>>>full
>>>
>>>
>>>>>flush?
>>>>
>>>>Personally, if you change the transmission fluid and filter on a
>>>>reasonable schedule, these flushes are a waste of money, IMO.
>>>>
>>>
>>>
>>>Actually, if you change your ATF properly (IMHO), you do a flush anyway.
>>>But... it was my understanding there is no replaceable filter in the
>
> Hyundai
>
>>>trannies.
>>>
>>
>>No, you don't flush all of the old fluid from the tranny. Most
>>automatics drain at best half of the fluid.
>>
>
>
> No Matt - what I meant was that the way I service my tranny is to drain it,
> fill it, and break the line at the radiator and start the car to pump it
> (while keeping it topped off) until it flows nice bright new fluid. That's
> a flush. Draining a tranny is not a flush.
I've heard of folks doing that successfully, but it is also a way to
shorten the life of the transmission if you let that pump get low enough
on oil to pump air. Also, I don't think you will exchange all of the
fluid in the TC by doing this.
In any event, it is completely unnecessary. Transmissions don't
contaminate the oil anywhere near what engines do with their combustion
byproducts. Changing half of the fluid at the recommended intervals is
plenty good enough maintenance.
Matt
Guest
Posts: n/a
Re: Transmission Flush
Mike Marlow wrote:
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:yUeBf.5483$lb.475664@news1.epix.net...
>
>>Mike Marlow wrote:
>>
>>
>>>"Matt Whiting" <whiting@epix.net> wrote in message
>>>news:FtdBf.5480$lb.475148@news1.epix.net...
>>>
>>>
>>>>suresh wrote:
>>>>
>>>>
>>>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>>>
>>>back
>>>
>>>
>>>>>with a "strong" recommendation to do transmission flush.
>>>>>
>>>>>Went to a quick oil change place and did a $79.99 Automatic
>
> Transmission
>
>>>>>Flush.
>>>>>
>>>>>Now, my friend says Automatic Flush is not a flush and I should have
>>>
>>>done
>>>
>>>
>>>>>a full flush.
>>>>>
>>>>>Did I do something foolish ? SHould I go back and spend more and do a
>>>
>>>full
>>>
>>>
>>>>>flush?
>>>>
>>>>Personally, if you change the transmission fluid and filter on a
>>>>reasonable schedule, these flushes are a waste of money, IMO.
>>>>
>>>
>>>
>>>Actually, if you change your ATF properly (IMHO), you do a flush anyway.
>>>But... it was my understanding there is no replaceable filter in the
>
> Hyundai
>
>>>trannies.
>>>
>>
>>No, you don't flush all of the old fluid from the tranny. Most
>>automatics drain at best half of the fluid.
>>
>
>
> No Matt - what I meant was that the way I service my tranny is to drain it,
> fill it, and break the line at the radiator and start the car to pump it
> (while keeping it topped off) until it flows nice bright new fluid. That's
> a flush. Draining a tranny is not a flush.
I've heard of folks doing that successfully, but it is also a way to
shorten the life of the transmission if you let that pump get low enough
on oil to pump air. Also, I don't think you will exchange all of the
fluid in the TC by doing this.
In any event, it is completely unnecessary. Transmissions don't
contaminate the oil anywhere near what engines do with their combustion
byproducts. Changing half of the fluid at the recommended intervals is
plenty good enough maintenance.
Matt
> "Matt Whiting" <whiting@epix.net> wrote in message
> news:yUeBf.5483$lb.475664@news1.epix.net...
>
>>Mike Marlow wrote:
>>
>>
>>>"Matt Whiting" <whiting@epix.net> wrote in message
>>>news:FtdBf.5480$lb.475148@news1.epix.net...
>>>
>>>
>>>>suresh wrote:
>>>>
>>>>
>>>>>Went for winter checkup (01 Hyundai Elantra GT) at firestone and came
>>>
>>>back
>>>
>>>
>>>>>with a "strong" recommendation to do transmission flush.
>>>>>
>>>>>Went to a quick oil change place and did a $79.99 Automatic
>
> Transmission
>
>>>>>Flush.
>>>>>
>>>>>Now, my friend says Automatic Flush is not a flush and I should have
>>>
>>>done
>>>
>>>
>>>>>a full flush.
>>>>>
>>>>>Did I do something foolish ? SHould I go back and spend more and do a
>>>
>>>full
>>>
>>>
>>>>>flush?
>>>>
>>>>Personally, if you change the transmission fluid and filter on a
>>>>reasonable schedule, these flushes are a waste of money, IMO.
>>>>
>>>
>>>
>>>Actually, if you change your ATF properly (IMHO), you do a flush anyway.
>>>But... it was my understanding there is no replaceable filter in the
>
> Hyundai
>
>>>trannies.
>>>
>>
>>No, you don't flush all of the old fluid from the tranny. Most
>>automatics drain at best half of the fluid.
>>
>
>
> No Matt - what I meant was that the way I service my tranny is to drain it,
> fill it, and break the line at the radiator and start the car to pump it
> (while keeping it topped off) until it flows nice bright new fluid. That's
> a flush. Draining a tranny is not a flush.
I've heard of folks doing that successfully, but it is also a way to
shorten the life of the transmission if you let that pump get low enough
on oil to pump air. Also, I don't think you will exchange all of the
fluid in the TC by doing this.
In any event, it is completely unnecessary. Transmissions don't
contaminate the oil anywhere near what engines do with their combustion
byproducts. Changing half of the fluid at the recommended intervals is
plenty good enough maintenance.
Matt
Guest
Posts: n/a
Re: Transmission Flush
"Matt Whiting" <whiting@epix.net> wrote in message
news:J1gBf.5485$lb.476151@news1.epix.net...
>
> >
> > No Matt - what I meant was that the way I service my tranny is to drain
it,
> > fill it, and break the line at the radiator and start the car to pump it
> > (while keeping it topped off) until it flows nice bright new fluid.
That's
> > a flush. Draining a tranny is not a flush.
>
> I've heard of folks doing that successfully, but it is also a way to
> shorten the life of the transmission if you let that pump get low enough
> on oil to pump air. Also, I don't think you will exchange all of the
> fluid in the TC by doing this.
>
Well yeah - if you run the tranny low, but it's not at all difficult to keep
it topped off while you're flushing it. You'd have to be asleep under the
hood to drain it down low enough to pump air. You do exchange the TC fluid
this way - it's a closed loop system. Perhaps one could argue that there is
some very, very small percentage of the old fluid that mixes with the new,
but that is such a small number that it is inconsequential.
> In any event, it is completely unnecessary. Transmissions don't
> contaminate the oil anywhere near what engines do with their combustion
> byproducts. Changing half of the fluid at the recommended intervals is
> plenty good enough maintenance.
>
Correct - there is not combustion in a tranny so the fluids don't
contaminate like engine oil does. But - why bother changing tranny fluid at
all then? It's so easy to flush the tranny, and it's done so infrequently,
that it's hardly worth *not* doing it.
As an aside - have you ever run flush/cleaner through tranny lines before
installing a rebuilt, or a new tranny? Did you see the amount of ugly black
crap that comes out of those lines? Trannies are constantly wearing and
degrading. Clutch residue, etc. has to go somewhere and it does not all
accumulate in the pan. Flushing the lines, though not the same as a real
cleaning, does a lot to clean out the whole system. It's the only way
you're going to clean the residue out of the intercooler and the lines
themselves.
--
-Mike-
mmarlowREMOVE@alltel.net
Guest
Posts: n/a
Re: Transmission Flush
"Matt Whiting" <whiting@epix.net> wrote in message
news:J1gBf.5485$lb.476151@news1.epix.net...
>
> >
> > No Matt - what I meant was that the way I service my tranny is to drain
it,
> > fill it, and break the line at the radiator and start the car to pump it
> > (while keeping it topped off) until it flows nice bright new fluid.
That's
> > a flush. Draining a tranny is not a flush.
>
> I've heard of folks doing that successfully, but it is also a way to
> shorten the life of the transmission if you let that pump get low enough
> on oil to pump air. Also, I don't think you will exchange all of the
> fluid in the TC by doing this.
>
Well yeah - if you run the tranny low, but it's not at all difficult to keep
it topped off while you're flushing it. You'd have to be asleep under the
hood to drain it down low enough to pump air. You do exchange the TC fluid
this way - it's a closed loop system. Perhaps one could argue that there is
some very, very small percentage of the old fluid that mixes with the new,
but that is such a small number that it is inconsequential.
> In any event, it is completely unnecessary. Transmissions don't
> contaminate the oil anywhere near what engines do with their combustion
> byproducts. Changing half of the fluid at the recommended intervals is
> plenty good enough maintenance.
>
Correct - there is not combustion in a tranny so the fluids don't
contaminate like engine oil does. But - why bother changing tranny fluid at
all then? It's so easy to flush the tranny, and it's done so infrequently,
that it's hardly worth *not* doing it.
As an aside - have you ever run flush/cleaner through tranny lines before
installing a rebuilt, or a new tranny? Did you see the amount of ugly black
crap that comes out of those lines? Trannies are constantly wearing and
degrading. Clutch residue, etc. has to go somewhere and it does not all
accumulate in the pan. Flushing the lines, though not the same as a real
cleaning, does a lot to clean out the whole system. It's the only way
you're going to clean the residue out of the intercooler and the lines
themselves.
--
-Mike-
mmarlowREMOVE@alltel.net
Guest
Posts: n/a
Re: Transmission Flush
"Matt Whiting" <whiting@epix.net> wrote in message
news:J1gBf.5485$lb.476151@news1.epix.net...
>
> >
> > No Matt - what I meant was that the way I service my tranny is to drain
it,
> > fill it, and break the line at the radiator and start the car to pump it
> > (while keeping it topped off) until it flows nice bright new fluid.
That's
> > a flush. Draining a tranny is not a flush.
>
> I've heard of folks doing that successfully, but it is also a way to
> shorten the life of the transmission if you let that pump get low enough
> on oil to pump air. Also, I don't think you will exchange all of the
> fluid in the TC by doing this.
>
Well yeah - if you run the tranny low, but it's not at all difficult to keep
it topped off while you're flushing it. You'd have to be asleep under the
hood to drain it down low enough to pump air. You do exchange the TC fluid
this way - it's a closed loop system. Perhaps one could argue that there is
some very, very small percentage of the old fluid that mixes with the new,
but that is such a small number that it is inconsequential.
> In any event, it is completely unnecessary. Transmissions don't
> contaminate the oil anywhere near what engines do with their combustion
> byproducts. Changing half of the fluid at the recommended intervals is
> plenty good enough maintenance.
>
Correct - there is not combustion in a tranny so the fluids don't
contaminate like engine oil does. But - why bother changing tranny fluid at
all then? It's so easy to flush the tranny, and it's done so infrequently,
that it's hardly worth *not* doing it.
As an aside - have you ever run flush/cleaner through tranny lines before
installing a rebuilt, or a new tranny? Did you see the amount of ugly black
crap that comes out of those lines? Trannies are constantly wearing and
degrading. Clutch residue, etc. has to go somewhere and it does not all
accumulate in the pan. Flushing the lines, though not the same as a real
cleaning, does a lot to clean out the whole system. It's the only way
you're going to clean the residue out of the intercooler and the lines
themselves.
--
-Mike-
mmarlowREMOVE@alltel.net
Guest
Posts: n/a
Re: Transmission Flush
Mike Marlow wrote:
> Well yeah - if you run the tranny low, but it's not at all difficult to keep
> it topped off while you're flushing it. You'd have to be asleep under the
> hood to drain it down low enough to pump air. You do exchange the TC fluid
> this way - it's a closed loop system. Perhaps one could argue that there is
> some very, very small percentage of the old fluid that mixes with the new,
> but that is such a small number that it is inconsequential.
How do you keep it full? How do you even check the oil when you have
the dipstick out to pour the oil in?
I'll take your word for it on the Hyundai TC as I don't have a shop
manual for one yet. Many of the older TCs didn't really exchange oil
much until they were spinning at a pretty high RPM. At idle, not much
oil was exchanged between the TC internals and the rest of the transmission.
>>In any event, it is completely unnecessary. Transmissions don't
>>contaminate the oil anywhere near what engines do with their combustion
>>byproducts. Changing half of the fluid at the recommended intervals is
>>plenty good enough maintenance.
>>
>
>
> Correct - there is not combustion in a tranny so the fluids don't
> contaminate like engine oil does. But - why bother changing tranny fluid at
> all then? It's so easy to flush the tranny, and it's done so infrequently,
> that it's hardly worth *not* doing it.
The main reason generally is to change the filter. I think you or
someone else said that Hyundai has no filter, but that seems like a
major oversight if true. Changing the filter and half of the fluid
probably removed 90% of the wear particles and also gave you a fairly
large dose of new additives for the seals, friction modifiers, etc.
I've never seen a car maker require transmissions flushes so I think
they are largely a waste of money and fluid.
You'd have to run probably 2-3 times the capacity of the transmission
through it to have any hope of anything approaching a 100% exchange of
fluid, and even then I'll bet you don't get it all.
> As an aside - have you ever run flush/cleaner through tranny lines before
> installing a rebuilt, or a new tranny? Did you see the amount of ugly black
> crap that comes out of those lines? Trannies are constantly wearing and
> degrading. Clutch residue, etc. has to go somewhere and it does not all
> accumulate in the pan. Flushing the lines, though not the same as a real
> cleaning, does a lot to clean out the whole system. It's the only way
> you're going to clean the residue out of the intercooler and the lines
> themselves.
Nope, I've never had to replace a transmission in 30 years of car
ownership. My last vehicle before the Sonata was a 96 Plymouth Grand
Voyager with the supposedly fragile electronic 4-speed. It went to
178,000 miles before a drunk ran into me an totaled it right before
Christmas. The transmission was original and working great. Regular
maintenance and sane driving practices and you shouldn't have to replace
a transmission, unless you get the occasional lemon.
I'm not saying there aren't conditions where a flush makes sense, and it
sounds like a rebuilt tranny is one of them, however, to me this
indicates a really lousy rebuild. A good rebuilding of either engines
or transmissions should ensure that things are squeaky clean before
being assembled.
I'm saying that there is no need to flush an automatic as part of
routine maintenance.
Matt
> Well yeah - if you run the tranny low, but it's not at all difficult to keep
> it topped off while you're flushing it. You'd have to be asleep under the
> hood to drain it down low enough to pump air. You do exchange the TC fluid
> this way - it's a closed loop system. Perhaps one could argue that there is
> some very, very small percentage of the old fluid that mixes with the new,
> but that is such a small number that it is inconsequential.
How do you keep it full? How do you even check the oil when you have
the dipstick out to pour the oil in?
I'll take your word for it on the Hyundai TC as I don't have a shop
manual for one yet. Many of the older TCs didn't really exchange oil
much until they were spinning at a pretty high RPM. At idle, not much
oil was exchanged between the TC internals and the rest of the transmission.
>>In any event, it is completely unnecessary. Transmissions don't
>>contaminate the oil anywhere near what engines do with their combustion
>>byproducts. Changing half of the fluid at the recommended intervals is
>>plenty good enough maintenance.
>>
>
>
> Correct - there is not combustion in a tranny so the fluids don't
> contaminate like engine oil does. But - why bother changing tranny fluid at
> all then? It's so easy to flush the tranny, and it's done so infrequently,
> that it's hardly worth *not* doing it.
The main reason generally is to change the filter. I think you or
someone else said that Hyundai has no filter, but that seems like a
major oversight if true. Changing the filter and half of the fluid
probably removed 90% of the wear particles and also gave you a fairly
large dose of new additives for the seals, friction modifiers, etc.
I've never seen a car maker require transmissions flushes so I think
they are largely a waste of money and fluid.
You'd have to run probably 2-3 times the capacity of the transmission
through it to have any hope of anything approaching a 100% exchange of
fluid, and even then I'll bet you don't get it all.
> As an aside - have you ever run flush/cleaner through tranny lines before
> installing a rebuilt, or a new tranny? Did you see the amount of ugly black
> crap that comes out of those lines? Trannies are constantly wearing and
> degrading. Clutch residue, etc. has to go somewhere and it does not all
> accumulate in the pan. Flushing the lines, though not the same as a real
> cleaning, does a lot to clean out the whole system. It's the only way
> you're going to clean the residue out of the intercooler and the lines
> themselves.
Nope, I've never had to replace a transmission in 30 years of car
ownership. My last vehicle before the Sonata was a 96 Plymouth Grand
Voyager with the supposedly fragile electronic 4-speed. It went to
178,000 miles before a drunk ran into me an totaled it right before
Christmas. The transmission was original and working great. Regular
maintenance and sane driving practices and you shouldn't have to replace
a transmission, unless you get the occasional lemon.
I'm not saying there aren't conditions where a flush makes sense, and it
sounds like a rebuilt tranny is one of them, however, to me this
indicates a really lousy rebuild. A good rebuilding of either engines
or transmissions should ensure that things are squeaky clean before
being assembled.
I'm saying that there is no need to flush an automatic as part of
routine maintenance.
Matt
Guest
Posts: n/a
Re: Transmission Flush
Mike Marlow wrote:
> Well yeah - if you run the tranny low, but it's not at all difficult to keep
> it topped off while you're flushing it. You'd have to be asleep under the
> hood to drain it down low enough to pump air. You do exchange the TC fluid
> this way - it's a closed loop system. Perhaps one could argue that there is
> some very, very small percentage of the old fluid that mixes with the new,
> but that is such a small number that it is inconsequential.
How do you keep it full? How do you even check the oil when you have
the dipstick out to pour the oil in?
I'll take your word for it on the Hyundai TC as I don't have a shop
manual for one yet. Many of the older TCs didn't really exchange oil
much until they were spinning at a pretty high RPM. At idle, not much
oil was exchanged between the TC internals and the rest of the transmission.
>>In any event, it is completely unnecessary. Transmissions don't
>>contaminate the oil anywhere near what engines do with their combustion
>>byproducts. Changing half of the fluid at the recommended intervals is
>>plenty good enough maintenance.
>>
>
>
> Correct - there is not combustion in a tranny so the fluids don't
> contaminate like engine oil does. But - why bother changing tranny fluid at
> all then? It's so easy to flush the tranny, and it's done so infrequently,
> that it's hardly worth *not* doing it.
The main reason generally is to change the filter. I think you or
someone else said that Hyundai has no filter, but that seems like a
major oversight if true. Changing the filter and half of the fluid
probably removed 90% of the wear particles and also gave you a fairly
large dose of new additives for the seals, friction modifiers, etc.
I've never seen a car maker require transmissions flushes so I think
they are largely a waste of money and fluid.
You'd have to run probably 2-3 times the capacity of the transmission
through it to have any hope of anything approaching a 100% exchange of
fluid, and even then I'll bet you don't get it all.
> As an aside - have you ever run flush/cleaner through tranny lines before
> installing a rebuilt, or a new tranny? Did you see the amount of ugly black
> crap that comes out of those lines? Trannies are constantly wearing and
> degrading. Clutch residue, etc. has to go somewhere and it does not all
> accumulate in the pan. Flushing the lines, though not the same as a real
> cleaning, does a lot to clean out the whole system. It's the only way
> you're going to clean the residue out of the intercooler and the lines
> themselves.
Nope, I've never had to replace a transmission in 30 years of car
ownership. My last vehicle before the Sonata was a 96 Plymouth Grand
Voyager with the supposedly fragile electronic 4-speed. It went to
178,000 miles before a drunk ran into me an totaled it right before
Christmas. The transmission was original and working great. Regular
maintenance and sane driving practices and you shouldn't have to replace
a transmission, unless you get the occasional lemon.
I'm not saying there aren't conditions where a flush makes sense, and it
sounds like a rebuilt tranny is one of them, however, to me this
indicates a really lousy rebuild. A good rebuilding of either engines
or transmissions should ensure that things are squeaky clean before
being assembled.
I'm saying that there is no need to flush an automatic as part of
routine maintenance.
Matt
> Well yeah - if you run the tranny low, but it's not at all difficult to keep
> it topped off while you're flushing it. You'd have to be asleep under the
> hood to drain it down low enough to pump air. You do exchange the TC fluid
> this way - it's a closed loop system. Perhaps one could argue that there is
> some very, very small percentage of the old fluid that mixes with the new,
> but that is such a small number that it is inconsequential.
How do you keep it full? How do you even check the oil when you have
the dipstick out to pour the oil in?
I'll take your word for it on the Hyundai TC as I don't have a shop
manual for one yet. Many of the older TCs didn't really exchange oil
much until they were spinning at a pretty high RPM. At idle, not much
oil was exchanged between the TC internals and the rest of the transmission.
>>In any event, it is completely unnecessary. Transmissions don't
>>contaminate the oil anywhere near what engines do with their combustion
>>byproducts. Changing half of the fluid at the recommended intervals is
>>plenty good enough maintenance.
>>
>
>
> Correct - there is not combustion in a tranny so the fluids don't
> contaminate like engine oil does. But - why bother changing tranny fluid at
> all then? It's so easy to flush the tranny, and it's done so infrequently,
> that it's hardly worth *not* doing it.
The main reason generally is to change the filter. I think you or
someone else said that Hyundai has no filter, but that seems like a
major oversight if true. Changing the filter and half of the fluid
probably removed 90% of the wear particles and also gave you a fairly
large dose of new additives for the seals, friction modifiers, etc.
I've never seen a car maker require transmissions flushes so I think
they are largely a waste of money and fluid.
You'd have to run probably 2-3 times the capacity of the transmission
through it to have any hope of anything approaching a 100% exchange of
fluid, and even then I'll bet you don't get it all.
> As an aside - have you ever run flush/cleaner through tranny lines before
> installing a rebuilt, or a new tranny? Did you see the amount of ugly black
> crap that comes out of those lines? Trannies are constantly wearing and
> degrading. Clutch residue, etc. has to go somewhere and it does not all
> accumulate in the pan. Flushing the lines, though not the same as a real
> cleaning, does a lot to clean out the whole system. It's the only way
> you're going to clean the residue out of the intercooler and the lines
> themselves.
Nope, I've never had to replace a transmission in 30 years of car
ownership. My last vehicle before the Sonata was a 96 Plymouth Grand
Voyager with the supposedly fragile electronic 4-speed. It went to
178,000 miles before a drunk ran into me an totaled it right before
Christmas. The transmission was original and working great. Regular
maintenance and sane driving practices and you shouldn't have to replace
a transmission, unless you get the occasional lemon.
I'm not saying there aren't conditions where a flush makes sense, and it
sounds like a rebuilt tranny is one of them, however, to me this
indicates a really lousy rebuild. A good rebuilding of either engines
or transmissions should ensure that things are squeaky clean before
being assembled.
I'm saying that there is no need to flush an automatic as part of
routine maintenance.
Matt