"alysoncottini" <alysoncottini@***.net> wrote in message
newsS1jf.1$La5.0@fed1read01...
>
> "Dmitry of NJ" <dmitry.malinsky@gmail.com> wrote in message
> news:1133213483.977503.182260@o13g2000cwo.googlegr oups.com...
>>> Changing the transmission fluid cannot affect the engine. The problems
>>> are most likely unrelated, unless they're electrical. The engine and
>>> trainsmission are both computer controlled and could malfunction due to
>>> voltage irregularities and/or bad connections.
>>
>> Right. What I meant was: How does changing the transmission fluid at a
>> late stage (in my case at nearly 80,000 mi) affect the transmission
>> itself?
>>
>> ... I've heard that doing this dislodges dirt and can be worse than
>> keeping the original fluid, but would like to hear from people who have
>> experience with engines and Hyundai's in particular.
>>
>> Sorry for the misstatement though- I understand what you're saying but
>> it's a bit different than what I was thinking of in my post.
>>
>>
>> Best,
>> Dmitry
>>
--
Changing the transmission fluid will never hurt a transmission. Flushing the
transmission might hurt it. Depending on how much dirt is in there. If in
doubt.change it but don't flush it.
Geoff

 

"alysoncottini" <alysoncottini@***.net> wrote in message
newsS1jf.1$La5.0@fed1read01...
>
> "Dmitry of NJ" <dmitry.malinsky@gmail.com> wrote in message
> news:1133213483.977503.182260@o13g2000cwo.googlegr oups.com...
>>> Changing the transmission fluid cannot affect the engine. The problems
>>> are most likely unrelated, unless they're electrical. The engine and
>>> trainsmission are both computer controlled and could malfunction due to
>>> voltage irregularities and/or bad connections.
>>
>> Right. What I meant was: How does changing the transmission fluid at a
>> late stage (in my case at nearly 80,000 mi) affect the transmission
>> itself?
>>
>> ... I've heard that doing this dislodges dirt and can be worse than
>> keeping the original fluid, but would like to hear from people who have
>> experience with engines and Hyundai's in particular.
>>
>> Sorry for the misstatement though- I understand what you're saying but
>> it's a bit different than what I was thinking of in my post.
>>
>>
>> Best,
>> Dmitry
>>
--
Changing the transmission fluid will never hurt a transmission. Flushing the
transmission might hurt it. Depending on how much dirt is in there. If in
doubt.change it but don't flush it.
Geoff

 

Dmitry of NJ wrote:
> I've heard that once you reach a certain mileage, it is better to keep
> the original transmission fluid instead of changing it.. Is this true?
> If so, when is it "too late" to change the auto transmission fluid?
> (in relation to what's best for the engine, not warranty)

Old wives tale. Keeping bad fluid in there is never a good thing.

>
> I ask because I recently changed the fluid for the first time on my
> 78,000 mile Sonata (2000, V6). Before the change, the car was getting
> stuck in gear, not shifting well, and the crank sensor code came up
> during a scan. Now, it doesn't even start. I've ordered a new crank
> sensor and really hope that changing the tranny fluid didn't screw up
> the engine beyond the damage that was already there...


The tranny fluid certainly didn't hurt the engine. Something else is
wrong, probably that sensor.

John

 

Dmitry of NJ wrote:
> I've heard that once you reach a certain mileage, it is better to keep
> the original transmission fluid instead of changing it.. Is this true?
> If so, when is it "too late" to change the auto transmission fluid?
> (in relation to what's best for the engine, not warranty)

Old wives tale. Keeping bad fluid in there is never a good thing.

>
> I ask because I recently changed the fluid for the first time on my
> 78,000 mile Sonata (2000, V6). Before the change, the car was getting
> stuck in gear, not shifting well, and the crank sensor code came up
> during a scan. Now, it doesn't even start. I've ordered a new crank
> sensor and really hope that changing the tranny fluid didn't screw up
> the engine beyond the damage that was already there...


The tranny fluid certainly didn't hurt the engine. Something else is
wrong, probably that sensor.

John