1998 CRV 4wd transmission
#16
Guest
Posts: n/a
Re: 1998 CRV 4wd transmission
damn wrote:>
> Hi Curly, Thanks for the quick response, the fluid is slight brown,
> acceptable considering it was just chnaged recently and could have got
> some of its tint from mixing with the torq con. fluid, does not smell
> burnt. the fluid was is at proper level. How would one reset the TCU,
> if at all possible.
> Denis.
----------------
Denis,
Your description of the fluid makes me think you need to get it drained
one more time, and be sure it's Honda Z1 they put in. No subs, no
additives. For me, I'd drain it again in another month to be sure it's
getting very clean.
If you have a large paint tray, and a 3/8" socket handle, you could do
it yourself, and then you'd get to inspect the magnetic plug too. Dirty
ATF makes me nervous. . . .
It's always possible they forgot to change it at all (but remembered to
bill you) :-(
'Curly'
> Hi Curly, Thanks for the quick response, the fluid is slight brown,
> acceptable considering it was just chnaged recently and could have got
> some of its tint from mixing with the torq con. fluid, does not smell
> burnt. the fluid was is at proper level. How would one reset the TCU,
> if at all possible.
> Denis.
----------------
Denis,
Your description of the fluid makes me think you need to get it drained
one more time, and be sure it's Honda Z1 they put in. No subs, no
additives. For me, I'd drain it again in another month to be sure it's
getting very clean.
If you have a large paint tray, and a 3/8" socket handle, you could do
it yourself, and then you'd get to inspect the magnetic plug too. Dirty
ATF makes me nervous. . . .
It's always possible they forgot to change it at all (but remembered to
bill you) :-(
'Curly'
#17
Guest
Posts: n/a
Re: 1998 CRV 4wd transmission
damn wrote:>
> Hi Curly, Thanks for the quick response, the fluid is slight brown,
> acceptable considering it was just chnaged recently and could have got
> some of its tint from mixing with the torq con. fluid, does not smell
> burnt. the fluid was is at proper level. How would one reset the TCU,
> if at all possible.
> Denis.
----------------
Denis,
Your description of the fluid makes me think you need to get it drained
one more time, and be sure it's Honda Z1 they put in. No subs, no
additives. For me, I'd drain it again in another month to be sure it's
getting very clean.
If you have a large paint tray, and a 3/8" socket handle, you could do
it yourself, and then you'd get to inspect the magnetic plug too. Dirty
ATF makes me nervous. . . .
It's always possible they forgot to change it at all (but remembered to
bill you) :-(
'Curly'
> Hi Curly, Thanks for the quick response, the fluid is slight brown,
> acceptable considering it was just chnaged recently and could have got
> some of its tint from mixing with the torq con. fluid, does not smell
> burnt. the fluid was is at proper level. How would one reset the TCU,
> if at all possible.
> Denis.
----------------
Denis,
Your description of the fluid makes me think you need to get it drained
one more time, and be sure it's Honda Z1 they put in. No subs, no
additives. For me, I'd drain it again in another month to be sure it's
getting very clean.
If you have a large paint tray, and a 3/8" socket handle, you could do
it yourself, and then you'd get to inspect the magnetic plug too. Dirty
ATF makes me nervous. . . .
It's always possible they forgot to change it at all (but remembered to
bill you) :-(
'Curly'
#18
Guest
Posts: n/a
Re: 1998 CRV 4wd transmission
I was not aware that the CR-V had a TCU that would re-learn shift points if
the battery were disconnected.
Tom
"damn" <someone@hotmail.com> wrote in message
news:dv47r01p53nbnnrf24ba93j9onvedmg695@4ax.com...
> On Sun, 05 Dec 2004 20:14:48 GMT, "Net-Doctor"
> <bgreene1@columbus.rr.com> wrote:
>
>>
>>"twfsa" <uksatw@qwest.net> wrote in message
>>news:8wFsd.2403$Zo.51@lakeread07...
>>> Do a google search for automatic transmission additives, what do yu have
>>to
>>> loose or take it to an independent trans shop, before you think of
>>> adding
>>> the additive. There are some honest shops out there.
>>>
>>> Tom
>> Were there any metal flakes or filings on the drain bolt magnet?
>>Any significant solid ferrous material there may have come from a clutch.
>> It's conceivable that a valve could be sticking, but not likely from
>>being gunked up. Your transmission doesn't develop gunk inside unless the
>>fluid never gets changed, or something other than ATF got put in. I have
>>seen a lot of transmissions broken down and even the worst ones just have
>>dark fluid, but it's not thick and sludgey. The strainer does a very good
>>job of filtering it. If it was a gunk related issue it would have came
>>from
>>the factory that way, and it would have been a problem since day 1.
>>Doubtful
>>that any additive will free it. Although it won't hurt it either.
>> Could be a problem with a linear solenoid, but this is a Japan
>>transmission, so I'm not sure if that one uses a linear solenoid. A linear
>>solenoid controls fluid flow to the clutches to prevent shift shock. If a
>>linear were stuck or working slowly, a fluid pressure might be low at a
>>critical time ( during the shift ).
>> A well-equipped dealer might have the necessary equipment to do a dyno
>>test and monitor clutch pressures during the shifts. That might tell you
>>what's going on.
>> Doc
>>
> Hi Curly, Doc et All,
> Here is what I tried based on a lead from Curly.
> Disconnected the battery and 'gently' tapped two solenoid valves that
> I could see on top of the tranny a few times with a light #10 spanner
> used to disconnect the battery with, then let the car sit for over 3
> hours (took a nap lol).
> Came back reconnected the battery, and went for a test drive. Did a
> very slow speed series of starts and stops; with a full gear change
> 1st to 4th hoping the TCU would 're-learn' shift points. Continued
> this pattern at gradually higher speeds for gear change and slight up
> hill grades to put a little more pressure on the Trans (so far no
> reoccurrence 'AT ALL' of the symptom - usually it would happen at the
> get go and 'every' time Trans up shifted from 2 to 3, regardless if
> the Trans was cold or at normal operating temp.
> Came home and let the wife drive (different driver pattern, plus she's
> the main driver of the V, I use the Pilot). don't mean to shout but...
> COULD NOT DUPLICATE THE PROBLEM EVEN ONCE!!!
>
> I don't think I should however count my blessing yet, will let her
> drive it for a while. First off all thanks guys for the tip/s. Doc you
> mention the solenoid valves, since I did a little of both not sure
> which completely 'fixed' the prob; i.e. the power reset of the TCU or
> the wimpy tapping of the top two solenoids. Any idea where the linear
> solenoid is located. Please advise.
> Will keep you folks posted.
> THANKS again all,
> Denis.
>
> P.s. By the way the up shift points of all gears are uncanningly VERY
> smooth (like new), hope its not a calm before the storm. Did notice
> the valves need adjusting, can hear them tapping a little.
>
the battery were disconnected.
Tom
"damn" <someone@hotmail.com> wrote in message
news:dv47r01p53nbnnrf24ba93j9onvedmg695@4ax.com...
> On Sun, 05 Dec 2004 20:14:48 GMT, "Net-Doctor"
> <bgreene1@columbus.rr.com> wrote:
>
>>
>>"twfsa" <uksatw@qwest.net> wrote in message
>>news:8wFsd.2403$Zo.51@lakeread07...
>>> Do a google search for automatic transmission additives, what do yu have
>>to
>>> loose or take it to an independent trans shop, before you think of
>>> adding
>>> the additive. There are some honest shops out there.
>>>
>>> Tom
>> Were there any metal flakes or filings on the drain bolt magnet?
>>Any significant solid ferrous material there may have come from a clutch.
>> It's conceivable that a valve could be sticking, but not likely from
>>being gunked up. Your transmission doesn't develop gunk inside unless the
>>fluid never gets changed, or something other than ATF got put in. I have
>>seen a lot of transmissions broken down and even the worst ones just have
>>dark fluid, but it's not thick and sludgey. The strainer does a very good
>>job of filtering it. If it was a gunk related issue it would have came
>>from
>>the factory that way, and it would have been a problem since day 1.
>>Doubtful
>>that any additive will free it. Although it won't hurt it either.
>> Could be a problem with a linear solenoid, but this is a Japan
>>transmission, so I'm not sure if that one uses a linear solenoid. A linear
>>solenoid controls fluid flow to the clutches to prevent shift shock. If a
>>linear were stuck or working slowly, a fluid pressure might be low at a
>>critical time ( during the shift ).
>> A well-equipped dealer might have the necessary equipment to do a dyno
>>test and monitor clutch pressures during the shifts. That might tell you
>>what's going on.
>> Doc
>>
> Hi Curly, Doc et All,
> Here is what I tried based on a lead from Curly.
> Disconnected the battery and 'gently' tapped two solenoid valves that
> I could see on top of the tranny a few times with a light #10 spanner
> used to disconnect the battery with, then let the car sit for over 3
> hours (took a nap lol).
> Came back reconnected the battery, and went for a test drive. Did a
> very slow speed series of starts and stops; with a full gear change
> 1st to 4th hoping the TCU would 're-learn' shift points. Continued
> this pattern at gradually higher speeds for gear change and slight up
> hill grades to put a little more pressure on the Trans (so far no
> reoccurrence 'AT ALL' of the symptom - usually it would happen at the
> get go and 'every' time Trans up shifted from 2 to 3, regardless if
> the Trans was cold or at normal operating temp.
> Came home and let the wife drive (different driver pattern, plus she's
> the main driver of the V, I use the Pilot). don't mean to shout but...
> COULD NOT DUPLICATE THE PROBLEM EVEN ONCE!!!
>
> I don't think I should however count my blessing yet, will let her
> drive it for a while. First off all thanks guys for the tip/s. Doc you
> mention the solenoid valves, since I did a little of both not sure
> which completely 'fixed' the prob; i.e. the power reset of the TCU or
> the wimpy tapping of the top two solenoids. Any idea where the linear
> solenoid is located. Please advise.
> Will keep you folks posted.
> THANKS again all,
> Denis.
>
> P.s. By the way the up shift points of all gears are uncanningly VERY
> smooth (like new), hope its not a calm before the storm. Did notice
> the valves need adjusting, can hear them tapping a little.
>
#19
Guest
Posts: n/a
Re: 1998 CRV 4wd transmission
I was not aware that the CR-V had a TCU that would re-learn shift points if
the battery were disconnected.
Tom
"damn" <someone@hotmail.com> wrote in message
news:dv47r01p53nbnnrf24ba93j9onvedmg695@4ax.com...
> On Sun, 05 Dec 2004 20:14:48 GMT, "Net-Doctor"
> <bgreene1@columbus.rr.com> wrote:
>
>>
>>"twfsa" <uksatw@qwest.net> wrote in message
>>news:8wFsd.2403$Zo.51@lakeread07...
>>> Do a google search for automatic transmission additives, what do yu have
>>to
>>> loose or take it to an independent trans shop, before you think of
>>> adding
>>> the additive. There are some honest shops out there.
>>>
>>> Tom
>> Were there any metal flakes or filings on the drain bolt magnet?
>>Any significant solid ferrous material there may have come from a clutch.
>> It's conceivable that a valve could be sticking, but not likely from
>>being gunked up. Your transmission doesn't develop gunk inside unless the
>>fluid never gets changed, or something other than ATF got put in. I have
>>seen a lot of transmissions broken down and even the worst ones just have
>>dark fluid, but it's not thick and sludgey. The strainer does a very good
>>job of filtering it. If it was a gunk related issue it would have came
>>from
>>the factory that way, and it would have been a problem since day 1.
>>Doubtful
>>that any additive will free it. Although it won't hurt it either.
>> Could be a problem with a linear solenoid, but this is a Japan
>>transmission, so I'm not sure if that one uses a linear solenoid. A linear
>>solenoid controls fluid flow to the clutches to prevent shift shock. If a
>>linear were stuck or working slowly, a fluid pressure might be low at a
>>critical time ( during the shift ).
>> A well-equipped dealer might have the necessary equipment to do a dyno
>>test and monitor clutch pressures during the shifts. That might tell you
>>what's going on.
>> Doc
>>
> Hi Curly, Doc et All,
> Here is what I tried based on a lead from Curly.
> Disconnected the battery and 'gently' tapped two solenoid valves that
> I could see on top of the tranny a few times with a light #10 spanner
> used to disconnect the battery with, then let the car sit for over 3
> hours (took a nap lol).
> Came back reconnected the battery, and went for a test drive. Did a
> very slow speed series of starts and stops; with a full gear change
> 1st to 4th hoping the TCU would 're-learn' shift points. Continued
> this pattern at gradually higher speeds for gear change and slight up
> hill grades to put a little more pressure on the Trans (so far no
> reoccurrence 'AT ALL' of the symptom - usually it would happen at the
> get go and 'every' time Trans up shifted from 2 to 3, regardless if
> the Trans was cold or at normal operating temp.
> Came home and let the wife drive (different driver pattern, plus she's
> the main driver of the V, I use the Pilot). don't mean to shout but...
> COULD NOT DUPLICATE THE PROBLEM EVEN ONCE!!!
>
> I don't think I should however count my blessing yet, will let her
> drive it for a while. First off all thanks guys for the tip/s. Doc you
> mention the solenoid valves, since I did a little of both not sure
> which completely 'fixed' the prob; i.e. the power reset of the TCU or
> the wimpy tapping of the top two solenoids. Any idea where the linear
> solenoid is located. Please advise.
> Will keep you folks posted.
> THANKS again all,
> Denis.
>
> P.s. By the way the up shift points of all gears are uncanningly VERY
> smooth (like new), hope its not a calm before the storm. Did notice
> the valves need adjusting, can hear them tapping a little.
>
the battery were disconnected.
Tom
"damn" <someone@hotmail.com> wrote in message
news:dv47r01p53nbnnrf24ba93j9onvedmg695@4ax.com...
> On Sun, 05 Dec 2004 20:14:48 GMT, "Net-Doctor"
> <bgreene1@columbus.rr.com> wrote:
>
>>
>>"twfsa" <uksatw@qwest.net> wrote in message
>>news:8wFsd.2403$Zo.51@lakeread07...
>>> Do a google search for automatic transmission additives, what do yu have
>>to
>>> loose or take it to an independent trans shop, before you think of
>>> adding
>>> the additive. There are some honest shops out there.
>>>
>>> Tom
>> Were there any metal flakes or filings on the drain bolt magnet?
>>Any significant solid ferrous material there may have come from a clutch.
>> It's conceivable that a valve could be sticking, but not likely from
>>being gunked up. Your transmission doesn't develop gunk inside unless the
>>fluid never gets changed, or something other than ATF got put in. I have
>>seen a lot of transmissions broken down and even the worst ones just have
>>dark fluid, but it's not thick and sludgey. The strainer does a very good
>>job of filtering it. If it was a gunk related issue it would have came
>>from
>>the factory that way, and it would have been a problem since day 1.
>>Doubtful
>>that any additive will free it. Although it won't hurt it either.
>> Could be a problem with a linear solenoid, but this is a Japan
>>transmission, so I'm not sure if that one uses a linear solenoid. A linear
>>solenoid controls fluid flow to the clutches to prevent shift shock. If a
>>linear were stuck or working slowly, a fluid pressure might be low at a
>>critical time ( during the shift ).
>> A well-equipped dealer might have the necessary equipment to do a dyno
>>test and monitor clutch pressures during the shifts. That might tell you
>>what's going on.
>> Doc
>>
> Hi Curly, Doc et All,
> Here is what I tried based on a lead from Curly.
> Disconnected the battery and 'gently' tapped two solenoid valves that
> I could see on top of the tranny a few times with a light #10 spanner
> used to disconnect the battery with, then let the car sit for over 3
> hours (took a nap lol).
> Came back reconnected the battery, and went for a test drive. Did a
> very slow speed series of starts and stops; with a full gear change
> 1st to 4th hoping the TCU would 're-learn' shift points. Continued
> this pattern at gradually higher speeds for gear change and slight up
> hill grades to put a little more pressure on the Trans (so far no
> reoccurrence 'AT ALL' of the symptom - usually it would happen at the
> get go and 'every' time Trans up shifted from 2 to 3, regardless if
> the Trans was cold or at normal operating temp.
> Came home and let the wife drive (different driver pattern, plus she's
> the main driver of the V, I use the Pilot). don't mean to shout but...
> COULD NOT DUPLICATE THE PROBLEM EVEN ONCE!!!
>
> I don't think I should however count my blessing yet, will let her
> drive it for a while. First off all thanks guys for the tip/s. Doc you
> mention the solenoid valves, since I did a little of both not sure
> which completely 'fixed' the prob; i.e. the power reset of the TCU or
> the wimpy tapping of the top two solenoids. Any idea where the linear
> solenoid is located. Please advise.
> Will keep you folks posted.
> THANKS again all,
> Denis.
>
> P.s. By the way the up shift points of all gears are uncanningly VERY
> smooth (like new), hope its not a calm before the storm. Did notice
> the valves need adjusting, can hear them tapping a little.
>
#20
Guest
Posts: n/a
Re: 1998 CRV 4wd transmission
On Sun, 5 Dec 2004 18:50:30 -0600, "twfsa" <uksatw@qwest.net> wrote:
Hi Tom,
Not saying it does or doesn't, just what I did and the result. BTW
when I mentioned valves (engine) need adjusting it was an off subject
note related to engine rev performance.
But Tom brings a good question, anyone able to help?
Denis.
>I was not aware that the CR-V had a TCU that would re-learn shift points if
>the battery were disconnected.
>
>Tom
>
>
>"damn" <someone@hotmail.com> wrote in message
>news:dv47r01p53nbnnrf24ba93j9onvedmg695@4ax.com.. .
>> On Sun, 05 Dec 2004 20:14:48 GMT, "Net-Doctor"
>> <bgreene1@columbus.rr.com> wrote:
>>
>>>
>>>"twfsa" <uksatw@qwest.net> wrote in message
>>>news:8wFsd.2403$Zo.51@lakeread07...
>>>> Do a google search for automatic transmission additives, what do yu have
>>>to
>>>> loose or take it to an independent trans shop, before you think of
>>>> adding
>>>> the additive. There are some honest shops out there.
>>>>
>>>> Tom
>>> Were there any metal flakes or filings on the drain bolt magnet?
>>>Any significant solid ferrous material there may have come from a clutch.
>>> It's conceivable that a valve could be sticking, but not likely from
>>>being gunked up. Your transmission doesn't develop gunk inside unless the
>>>fluid never gets changed, or something other than ATF got put in. I have
>>>seen a lot of transmissions broken down and even the worst ones just have
>>>dark fluid, but it's not thick and sludgey. The strainer does a very good
>>>job of filtering it. If it was a gunk related issue it would have came
>>>from
>>>the factory that way, and it would have been a problem since day 1.
>>>Doubtful
>>>that any additive will free it. Although it won't hurt it either.
>>> Could be a problem with a linear solenoid, but this is a Japan
>>>transmission, so I'm not sure if that one uses a linear solenoid. A linear
>>>solenoid controls fluid flow to the clutches to prevent shift shock. If a
>>>linear were stuck or working slowly, a fluid pressure might be low at a
>>>critical time ( during the shift ).
>>> A well-equipped dealer might have the necessary equipment to do a dyno
>>>test and monitor clutch pressures during the shifts. That might tell you
>>>what's going on.
>>> Doc
>>>
>> Hi Curly, Doc et All,
>> Here is what I tried based on a lead from Curly.
>> Disconnected the battery and 'gently' tapped two solenoid valves that
>> I could see on top of the tranny a few times with a light #10 spanner
>> used to disconnect the battery with, then let the car sit for over 3
>> hours (took a nap lol).
>> Came back reconnected the battery, and went for a test drive. Did a
>> very slow speed series of starts and stops; with a full gear change
>> 1st to 4th hoping the TCU would 're-learn' shift points. Continued
>> this pattern at gradually higher speeds for gear change and slight up
>> hill grades to put a little more pressure on the Trans (so far no
>> reoccurrence 'AT ALL' of the symptom - usually it would happen at the
>> get go and 'every' time Trans up shifted from 2 to 3, regardless if
>> the Trans was cold or at normal operating temp.
>> Came home and let the wife drive (different driver pattern, plus she's
>> the main driver of the V, I use the Pilot). don't mean to shout but...
>> COULD NOT DUPLICATE THE PROBLEM EVEN ONCE!!!
>>
>> I don't think I should however count my blessing yet, will let her
>> drive it for a while. First off all thanks guys for the tip/s. Doc you
>> mention the solenoid valves, since I did a little of both not sure
>> which completely 'fixed' the prob; i.e. the power reset of the TCU or
>> the wimpy tapping of the top two solenoids. Any idea where the linear
>> solenoid is located. Please advise.
>> Will keep you folks posted.
>> THANKS again all,
>> Denis.
>>
>> P.s. By the way the up shift points of all gears are uncanningly VERY
>> smooth (like new), hope its not a calm before the storm. Did notice
>> the valves need adjusting, can hear them tapping a little.
>>
>
Hi Tom,
Not saying it does or doesn't, just what I did and the result. BTW
when I mentioned valves (engine) need adjusting it was an off subject
note related to engine rev performance.
But Tom brings a good question, anyone able to help?
Denis.
>I was not aware that the CR-V had a TCU that would re-learn shift points if
>the battery were disconnected.
>
>Tom
>
>
>"damn" <someone@hotmail.com> wrote in message
>news:dv47r01p53nbnnrf24ba93j9onvedmg695@4ax.com.. .
>> On Sun, 05 Dec 2004 20:14:48 GMT, "Net-Doctor"
>> <bgreene1@columbus.rr.com> wrote:
>>
>>>
>>>"twfsa" <uksatw@qwest.net> wrote in message
>>>news:8wFsd.2403$Zo.51@lakeread07...
>>>> Do a google search for automatic transmission additives, what do yu have
>>>to
>>>> loose or take it to an independent trans shop, before you think of
>>>> adding
>>>> the additive. There are some honest shops out there.
>>>>
>>>> Tom
>>> Were there any metal flakes or filings on the drain bolt magnet?
>>>Any significant solid ferrous material there may have come from a clutch.
>>> It's conceivable that a valve could be sticking, but not likely from
>>>being gunked up. Your transmission doesn't develop gunk inside unless the
>>>fluid never gets changed, or something other than ATF got put in. I have
>>>seen a lot of transmissions broken down and even the worst ones just have
>>>dark fluid, but it's not thick and sludgey. The strainer does a very good
>>>job of filtering it. If it was a gunk related issue it would have came
>>>from
>>>the factory that way, and it would have been a problem since day 1.
>>>Doubtful
>>>that any additive will free it. Although it won't hurt it either.
>>> Could be a problem with a linear solenoid, but this is a Japan
>>>transmission, so I'm not sure if that one uses a linear solenoid. A linear
>>>solenoid controls fluid flow to the clutches to prevent shift shock. If a
>>>linear were stuck or working slowly, a fluid pressure might be low at a
>>>critical time ( during the shift ).
>>> A well-equipped dealer might have the necessary equipment to do a dyno
>>>test and monitor clutch pressures during the shifts. That might tell you
>>>what's going on.
>>> Doc
>>>
>> Hi Curly, Doc et All,
>> Here is what I tried based on a lead from Curly.
>> Disconnected the battery and 'gently' tapped two solenoid valves that
>> I could see on top of the tranny a few times with a light #10 spanner
>> used to disconnect the battery with, then let the car sit for over 3
>> hours (took a nap lol).
>> Came back reconnected the battery, and went for a test drive. Did a
>> very slow speed series of starts and stops; with a full gear change
>> 1st to 4th hoping the TCU would 're-learn' shift points. Continued
>> this pattern at gradually higher speeds for gear change and slight up
>> hill grades to put a little more pressure on the Trans (so far no
>> reoccurrence 'AT ALL' of the symptom - usually it would happen at the
>> get go and 'every' time Trans up shifted from 2 to 3, regardless if
>> the Trans was cold or at normal operating temp.
>> Came home and let the wife drive (different driver pattern, plus she's
>> the main driver of the V, I use the Pilot). don't mean to shout but...
>> COULD NOT DUPLICATE THE PROBLEM EVEN ONCE!!!
>>
>> I don't think I should however count my blessing yet, will let her
>> drive it for a while. First off all thanks guys for the tip/s. Doc you
>> mention the solenoid valves, since I did a little of both not sure
>> which completely 'fixed' the prob; i.e. the power reset of the TCU or
>> the wimpy tapping of the top two solenoids. Any idea where the linear
>> solenoid is located. Please advise.
>> Will keep you folks posted.
>> THANKS again all,
>> Denis.
>>
>> P.s. By the way the up shift points of all gears are uncanningly VERY
>> smooth (like new), hope its not a calm before the storm. Did notice
>> the valves need adjusting, can hear them tapping a little.
>>
>
#21
Guest
Posts: n/a
Re: 1998 CRV 4wd transmission
On Sun, 5 Dec 2004 18:50:30 -0600, "twfsa" <uksatw@qwest.net> wrote:
Hi Tom,
Not saying it does or doesn't, just what I did and the result. BTW
when I mentioned valves (engine) need adjusting it was an off subject
note related to engine rev performance.
But Tom brings a good question, anyone able to help?
Denis.
>I was not aware that the CR-V had a TCU that would re-learn shift points if
>the battery were disconnected.
>
>Tom
>
>
>"damn" <someone@hotmail.com> wrote in message
>news:dv47r01p53nbnnrf24ba93j9onvedmg695@4ax.com.. .
>> On Sun, 05 Dec 2004 20:14:48 GMT, "Net-Doctor"
>> <bgreene1@columbus.rr.com> wrote:
>>
>>>
>>>"twfsa" <uksatw@qwest.net> wrote in message
>>>news:8wFsd.2403$Zo.51@lakeread07...
>>>> Do a google search for automatic transmission additives, what do yu have
>>>to
>>>> loose or take it to an independent trans shop, before you think of
>>>> adding
>>>> the additive. There are some honest shops out there.
>>>>
>>>> Tom
>>> Were there any metal flakes or filings on the drain bolt magnet?
>>>Any significant solid ferrous material there may have come from a clutch.
>>> It's conceivable that a valve could be sticking, but not likely from
>>>being gunked up. Your transmission doesn't develop gunk inside unless the
>>>fluid never gets changed, or something other than ATF got put in. I have
>>>seen a lot of transmissions broken down and even the worst ones just have
>>>dark fluid, but it's not thick and sludgey. The strainer does a very good
>>>job of filtering it. If it was a gunk related issue it would have came
>>>from
>>>the factory that way, and it would have been a problem since day 1.
>>>Doubtful
>>>that any additive will free it. Although it won't hurt it either.
>>> Could be a problem with a linear solenoid, but this is a Japan
>>>transmission, so I'm not sure if that one uses a linear solenoid. A linear
>>>solenoid controls fluid flow to the clutches to prevent shift shock. If a
>>>linear were stuck or working slowly, a fluid pressure might be low at a
>>>critical time ( during the shift ).
>>> A well-equipped dealer might have the necessary equipment to do a dyno
>>>test and monitor clutch pressures during the shifts. That might tell you
>>>what's going on.
>>> Doc
>>>
>> Hi Curly, Doc et All,
>> Here is what I tried based on a lead from Curly.
>> Disconnected the battery and 'gently' tapped two solenoid valves that
>> I could see on top of the tranny a few times with a light #10 spanner
>> used to disconnect the battery with, then let the car sit for over 3
>> hours (took a nap lol).
>> Came back reconnected the battery, and went for a test drive. Did a
>> very slow speed series of starts and stops; with a full gear change
>> 1st to 4th hoping the TCU would 're-learn' shift points. Continued
>> this pattern at gradually higher speeds for gear change and slight up
>> hill grades to put a little more pressure on the Trans (so far no
>> reoccurrence 'AT ALL' of the symptom - usually it would happen at the
>> get go and 'every' time Trans up shifted from 2 to 3, regardless if
>> the Trans was cold or at normal operating temp.
>> Came home and let the wife drive (different driver pattern, plus she's
>> the main driver of the V, I use the Pilot). don't mean to shout but...
>> COULD NOT DUPLICATE THE PROBLEM EVEN ONCE!!!
>>
>> I don't think I should however count my blessing yet, will let her
>> drive it for a while. First off all thanks guys for the tip/s. Doc you
>> mention the solenoid valves, since I did a little of both not sure
>> which completely 'fixed' the prob; i.e. the power reset of the TCU or
>> the wimpy tapping of the top two solenoids. Any idea where the linear
>> solenoid is located. Please advise.
>> Will keep you folks posted.
>> THANKS again all,
>> Denis.
>>
>> P.s. By the way the up shift points of all gears are uncanningly VERY
>> smooth (like new), hope its not a calm before the storm. Did notice
>> the valves need adjusting, can hear them tapping a little.
>>
>
Hi Tom,
Not saying it does or doesn't, just what I did and the result. BTW
when I mentioned valves (engine) need adjusting it was an off subject
note related to engine rev performance.
But Tom brings a good question, anyone able to help?
Denis.
>I was not aware that the CR-V had a TCU that would re-learn shift points if
>the battery were disconnected.
>
>Tom
>
>
>"damn" <someone@hotmail.com> wrote in message
>news:dv47r01p53nbnnrf24ba93j9onvedmg695@4ax.com.. .
>> On Sun, 05 Dec 2004 20:14:48 GMT, "Net-Doctor"
>> <bgreene1@columbus.rr.com> wrote:
>>
>>>
>>>"twfsa" <uksatw@qwest.net> wrote in message
>>>news:8wFsd.2403$Zo.51@lakeread07...
>>>> Do a google search for automatic transmission additives, what do yu have
>>>to
>>>> loose or take it to an independent trans shop, before you think of
>>>> adding
>>>> the additive. There are some honest shops out there.
>>>>
>>>> Tom
>>> Were there any metal flakes or filings on the drain bolt magnet?
>>>Any significant solid ferrous material there may have come from a clutch.
>>> It's conceivable that a valve could be sticking, but not likely from
>>>being gunked up. Your transmission doesn't develop gunk inside unless the
>>>fluid never gets changed, or something other than ATF got put in. I have
>>>seen a lot of transmissions broken down and even the worst ones just have
>>>dark fluid, but it's not thick and sludgey. The strainer does a very good
>>>job of filtering it. If it was a gunk related issue it would have came
>>>from
>>>the factory that way, and it would have been a problem since day 1.
>>>Doubtful
>>>that any additive will free it. Although it won't hurt it either.
>>> Could be a problem with a linear solenoid, but this is a Japan
>>>transmission, so I'm not sure if that one uses a linear solenoid. A linear
>>>solenoid controls fluid flow to the clutches to prevent shift shock. If a
>>>linear were stuck or working slowly, a fluid pressure might be low at a
>>>critical time ( during the shift ).
>>> A well-equipped dealer might have the necessary equipment to do a dyno
>>>test and monitor clutch pressures during the shifts. That might tell you
>>>what's going on.
>>> Doc
>>>
>> Hi Curly, Doc et All,
>> Here is what I tried based on a lead from Curly.
>> Disconnected the battery and 'gently' tapped two solenoid valves that
>> I could see on top of the tranny a few times with a light #10 spanner
>> used to disconnect the battery with, then let the car sit for over 3
>> hours (took a nap lol).
>> Came back reconnected the battery, and went for a test drive. Did a
>> very slow speed series of starts and stops; with a full gear change
>> 1st to 4th hoping the TCU would 're-learn' shift points. Continued
>> this pattern at gradually higher speeds for gear change and slight up
>> hill grades to put a little more pressure on the Trans (so far no
>> reoccurrence 'AT ALL' of the symptom - usually it would happen at the
>> get go and 'every' time Trans up shifted from 2 to 3, regardless if
>> the Trans was cold or at normal operating temp.
>> Came home and let the wife drive (different driver pattern, plus she's
>> the main driver of the V, I use the Pilot). don't mean to shout but...
>> COULD NOT DUPLICATE THE PROBLEM EVEN ONCE!!!
>>
>> I don't think I should however count my blessing yet, will let her
>> drive it for a while. First off all thanks guys for the tip/s. Doc you
>> mention the solenoid valves, since I did a little of both not sure
>> which completely 'fixed' the prob; i.e. the power reset of the TCU or
>> the wimpy tapping of the top two solenoids. Any idea where the linear
>> solenoid is located. Please advise.
>> Will keep you folks posted.
>> THANKS again all,
>> Denis.
>>
>> P.s. By the way the up shift points of all gears are uncanningly VERY
>> smooth (like new), hope its not a calm before the storm. Did notice
>> the valves need adjusting, can hear them tapping a little.
>>
>
#22
Guest
Posts: n/a
Re: 1998 CRV 4wd transmission
Just a FYI to all that helped, my CRV is still running great. Honda
techs asked for me to bring it back in so they could see for
themselves, they are writing a tech report to Honda, as they test
drove and prooved the tranny was good, no burnt oil smell, and fluid
is very light tint, and unbelieveable smooth gear shift.
They offered to change the linear valve for free (labor) as a 'just in
case'. I opted todo so. All ended well. THANKS again to all that
HELPED.
Denis
On Mon, 06 Dec 2004 01:32:51 GMT, damn <someone@hotmail.com> wrote:
>On Sun, 5 Dec 2004 18:50:30 -0600, "twfsa" <uksatw@qwest.net> wrote:
>
>Hi Tom,
>Not saying it does or doesn't, just what I did and the result. BTW
>when I mentioned valves (engine) need adjusting it was an off subject
>note related to engine rev performance.
>But Tom brings a good question, anyone able to help?
>Denis.
>
>>I was not aware that the CR-V had a TCU that would re-learn shift points if
>>the battery were disconnected.
>>
>>Tom
>>
>>
>>"damn" <someone@hotmail.com> wrote in message
>>news:dv47r01p53nbnnrf24ba93j9onvedmg695@4ax.com. ..
>>> On Sun, 05 Dec 2004 20:14:48 GMT, "Net-Doctor"
>>> <bgreene1@columbus.rr.com> wrote:
>>>
>>>>
>>>>"twfsa" <uksatw@qwest.net> wrote in message
>>>>news:8wFsd.2403$Zo.51@lakeread07...
>>>>> Do a google search for automatic transmission additives, what do yu have
>>>>to
>>>>> loose or take it to an independent trans shop, before you think of
>>>>> adding
>>>>> the additive. There are some honest shops out there.
>>>>>
>>>>> Tom
>>>> Were there any metal flakes or filings on the drain bolt magnet?
>>>>Any significant solid ferrous material there may have come from a clutch.
>>>> It's conceivable that a valve could be sticking, but not likely from
>>>>being gunked up. Your transmission doesn't develop gunk inside unless the
>>>>fluid never gets changed, or something other than ATF got put in. I have
>>>>seen a lot of transmissions broken down and even the worst ones just have
>>>>dark fluid, but it's not thick and sludgey. The strainer does a very good
>>>>job of filtering it. If it was a gunk related issue it would have came
>>>>from
>>>>the factory that way, and it would have been a problem since day 1.
>>>>Doubtful
>>>>that any additive will free it. Although it won't hurt it either.
>>>> Could be a problem with a linear solenoid, but this is a Japan
>>>>transmission, so I'm not sure if that one uses a linear solenoid. A linear
>>>>solenoid controls fluid flow to the clutches to prevent shift shock. If a
>>>>linear were stuck or working slowly, a fluid pressure might be low at a
>>>>critical time ( during the shift ).
>>>> A well-equipped dealer might have the necessary equipment to do a dyno
>>>>test and monitor clutch pressures during the shifts. That might tell you
>>>>what's going on.
>>>> Doc
>>>>
>>> Hi Curly, Doc et All,
>>> Here is what I tried based on a lead from Curly.
>>> Disconnected the battery and 'gently' tapped two solenoid valves that
>>> I could see on top of the tranny a few times with a light #10 spanner
>>> used to disconnect the battery with, then let the car sit for over 3
>>> hours (took a nap lol).
>>> Came back reconnected the battery, and went for a test drive. Did a
>>> very slow speed series of starts and stops; with a full gear change
>>> 1st to 4th hoping the TCU would 're-learn' shift points. Continued
>>> this pattern at gradually higher speeds for gear change and slight up
>>> hill grades to put a little more pressure on the Trans (so far no
>>> reoccurrence 'AT ALL' of the symptom - usually it would happen at the
>>> get go and 'every' time Trans up shifted from 2 to 3, regardless if
>>> the Trans was cold or at normal operating temp.
>>> Came home and let the wife drive (different driver pattern, plus she's
>>> the main driver of the V, I use the Pilot). don't mean to shout but...
>>> COULD NOT DUPLICATE THE PROBLEM EVEN ONCE!!!
>>>
>>> I don't think I should however count my blessing yet, will let her
>>> drive it for a while. First off all thanks guys for the tip/s. Doc you
>>> mention the solenoid valves, since I did a little of both not sure
>>> which completely 'fixed' the prob; i.e. the power reset of the TCU or
>>> the wimpy tapping of the top two solenoids. Any idea where the linear
>>> solenoid is located. Please advise.
>>> Will keep you folks posted.
>>> THANKS again all,
>>> Denis.
>>>
>>> P.s. By the way the up shift points of all gears are uncanningly VERY
>>> smooth (like new), hope its not a calm before the storm. Did notice
>>> the valves need adjusting, can hear them tapping a little.
>>>
>>
#23
Guest
Posts: n/a
Re: 1998 CRV 4wd transmission
Just a FYI to all that helped, my CRV is still running great. Honda
techs asked for me to bring it back in so they could see for
themselves, they are writing a tech report to Honda, as they test
drove and prooved the tranny was good, no burnt oil smell, and fluid
is very light tint, and unbelieveable smooth gear shift.
They offered to change the linear valve for free (labor) as a 'just in
case'. I opted todo so. All ended well. THANKS again to all that
HELPED.
Denis
On Mon, 06 Dec 2004 01:32:51 GMT, damn <someone@hotmail.com> wrote:
>On Sun, 5 Dec 2004 18:50:30 -0600, "twfsa" <uksatw@qwest.net> wrote:
>
>Hi Tom,
>Not saying it does or doesn't, just what I did and the result. BTW
>when I mentioned valves (engine) need adjusting it was an off subject
>note related to engine rev performance.
>But Tom brings a good question, anyone able to help?
>Denis.
>
>>I was not aware that the CR-V had a TCU that would re-learn shift points if
>>the battery were disconnected.
>>
>>Tom
>>
>>
>>"damn" <someone@hotmail.com> wrote in message
>>news:dv47r01p53nbnnrf24ba93j9onvedmg695@4ax.com. ..
>>> On Sun, 05 Dec 2004 20:14:48 GMT, "Net-Doctor"
>>> <bgreene1@columbus.rr.com> wrote:
>>>
>>>>
>>>>"twfsa" <uksatw@qwest.net> wrote in message
>>>>news:8wFsd.2403$Zo.51@lakeread07...
>>>>> Do a google search for automatic transmission additives, what do yu have
>>>>to
>>>>> loose or take it to an independent trans shop, before you think of
>>>>> adding
>>>>> the additive. There are some honest shops out there.
>>>>>
>>>>> Tom
>>>> Were there any metal flakes or filings on the drain bolt magnet?
>>>>Any significant solid ferrous material there may have come from a clutch.
>>>> It's conceivable that a valve could be sticking, but not likely from
>>>>being gunked up. Your transmission doesn't develop gunk inside unless the
>>>>fluid never gets changed, or something other than ATF got put in. I have
>>>>seen a lot of transmissions broken down and even the worst ones just have
>>>>dark fluid, but it's not thick and sludgey. The strainer does a very good
>>>>job of filtering it. If it was a gunk related issue it would have came
>>>>from
>>>>the factory that way, and it would have been a problem since day 1.
>>>>Doubtful
>>>>that any additive will free it. Although it won't hurt it either.
>>>> Could be a problem with a linear solenoid, but this is a Japan
>>>>transmission, so I'm not sure if that one uses a linear solenoid. A linear
>>>>solenoid controls fluid flow to the clutches to prevent shift shock. If a
>>>>linear were stuck or working slowly, a fluid pressure might be low at a
>>>>critical time ( during the shift ).
>>>> A well-equipped dealer might have the necessary equipment to do a dyno
>>>>test and monitor clutch pressures during the shifts. That might tell you
>>>>what's going on.
>>>> Doc
>>>>
>>> Hi Curly, Doc et All,
>>> Here is what I tried based on a lead from Curly.
>>> Disconnected the battery and 'gently' tapped two solenoid valves that
>>> I could see on top of the tranny a few times with a light #10 spanner
>>> used to disconnect the battery with, then let the car sit for over 3
>>> hours (took a nap lol).
>>> Came back reconnected the battery, and went for a test drive. Did a
>>> very slow speed series of starts and stops; with a full gear change
>>> 1st to 4th hoping the TCU would 're-learn' shift points. Continued
>>> this pattern at gradually higher speeds for gear change and slight up
>>> hill grades to put a little more pressure on the Trans (so far no
>>> reoccurrence 'AT ALL' of the symptom - usually it would happen at the
>>> get go and 'every' time Trans up shifted from 2 to 3, regardless if
>>> the Trans was cold or at normal operating temp.
>>> Came home and let the wife drive (different driver pattern, plus she's
>>> the main driver of the V, I use the Pilot). don't mean to shout but...
>>> COULD NOT DUPLICATE THE PROBLEM EVEN ONCE!!!
>>>
>>> I don't think I should however count my blessing yet, will let her
>>> drive it for a while. First off all thanks guys for the tip/s. Doc you
>>> mention the solenoid valves, since I did a little of both not sure
>>> which completely 'fixed' the prob; i.e. the power reset of the TCU or
>>> the wimpy tapping of the top two solenoids. Any idea where the linear
>>> solenoid is located. Please advise.
>>> Will keep you folks posted.
>>> THANKS again all,
>>> Denis.
>>>
>>> P.s. By the way the up shift points of all gears are uncanningly VERY
>>> smooth (like new), hope its not a calm before the storm. Did notice
>>> the valves need adjusting, can hear them tapping a little.
>>>
>>
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