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  #1 (permalink)  
Old 26 Jul 2010, 12:27 am
jim beam
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Default torque converter failure

what kind of mileage do others see before a torque converter lockup
clutch will start to slip? victim is a 90 honda crx.


--
nomina rutrum rutrum
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  #2 (permalink)  
Old 26 Jul 2010, 06:39 pm
Ed Treijs
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Default Re: torque converter failure

On Jul 26, 1:27*am, jim beam <m...@privacy.net> wrote:
> what kind of mileage do others see before a torque converter lockup
> clutch will start to slip? *victim is a 90 honda crx.


That's a pretty general question. There may be a lot of dependency on
the state of the transmission fluid, and whether the converter is
designed to sometimes run in partially-locked mode. My understanding
is that Chrysler's ATF+4 was formulated for partial lockup.

My '87 K-car's transmission gave no warning before it pretty much
stopped shifting gears. The problem was that some converter clutch
material had gone into the fluid and all over the place and played
havoc with the valve body. I didn't even have any slippage
symptoms.when this happened. So you might want to have the
transmission worked on right away....at least disable the lockup
feature if you need to keep driving the car.
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  #3 (permalink)  
Old 26 Jul 2010, 07:19 pm
jim beam
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Default Re: torque converter failure

On 07/26/2010 04:39 PM, Ed Treijs wrote:
> On Jul 26, 1:27�am, jim beam<m...@privacy.net> wrote:
>> what kind of mileage do others see before a torque converter lockup
>> clutch will start to slip? �victim is a 90 honda crx.

>
> That's a pretty general question. There may be a lot of dependency on
> the state of the transmission fluid, and whether the converter is
> designed to sometimes run in partially-locked mode. My understanding
> is that Chrysler's ATF+4 was formulated for partial lockup.
>
> My '87 K-car's transmission gave no warning before it pretty much
> stopped shifting gears. The problem was that some converter clutch
> material had gone into the fluid and all over the place and played
> havoc with the valve body. I didn't even have any slippage
> symptoms.when this happened. So you might want to have the
> transmission worked on right away....at least disable the lockup
> feature if you need to keep driving the car.


i guess that's my question - what is supposed to happen.

i have two of these things, so compare and contrast is easy. on one,
the lockup clutch is starting to slip on hills, the other is not. in
all other respects, the car is fine. but i have read about partial
lock-up mode - honda calls it "control mode", so i was wondering.
transmissions fluids are great, no debris, pink and unburnt, and besides
the fact that the other car behaves different, i'm convincing myself
that this is a progressive problem that's getting worse. mileage is
just under 200k.

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nomina rutrum rutrum
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  #4 (permalink)  
Old 26 Jul 2010, 08:09 pm
Hachiroku $B%O%A%m%/(B
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Default Re: torque converter failure

On Mon, 26 Jul 2010 16:39:38 -0700, Ed Treijs wrote:

> On Jul 26, 1:27*am, jim beam <m...@privacy.net> wrote:
>> what kind of mileage do others see before a torque converter lockup
>> clutch will start to slip? *victim is a 90 honda crx.

>
> That's a pretty general question. There may be a lot of dependency on
> the state of the transmission fluid, and whether the converter is
> designed to sometimes run in partially-locked mode. My understanding
> is that Chrysler's ATF+4 was formulated for partial lockup.
>
> My '87 K-car's transmission gave no warning before it pretty much
> stopped shifting gears. The problem was that some converter clutch
> material had gone into the fluid and all over the place and played
> havoc with the valve body. I didn't even have any slippage
> symptoms.when this happened. So you might want to have the
> transmission worked on right away....at least disable the lockup
> feature if you need to keep driving the car.



This can probably be accomplished by either jumpering or cutting a wire to
the trans ECU.


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  #5 (permalink)  
Old 26 Jul 2010, 11:22 pm
Garrett Fulton
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Default Re: torque converter failure


"jim beam" <me@privacy.net> wrote in message
news:Q6Gdnb-6l9yzu9PRnZ2dnUVZ_tednZ2d@speakeasy.net...
> On 07/26/2010 04:39 PM, Ed Treijs wrote:
>> On Jul 26, 1:27?am, jim beam<m...@privacy.net> wrote:
>>> what kind of mileage do others see before a torque converter lockup
>>> clutch will start to slip? ?victim is a 90 honda crx.

>>
>> That's a pretty general question. There may be a lot of dependency on
>> the state of the transmission fluid, and whether the converter is
>> designed to sometimes run in partially-locked mode. My understanding
>> is that Chrysler's ATF+4 was formulated for partial lockup.
>>
>> My '87 K-car's transmission gave no warning before it pretty much
>> stopped shifting gears. The problem was that some converter clutch
>> material had gone into the fluid and all over the place and played
>> havoc with the valve body. I didn't even have any slippage
>> symptoms.when this happened. So you might want to have the
>> transmission worked on right away....at least disable the lockup
>> feature if you need to keep driving the car.

>
> i guess that's my question - what is supposed to happen.
>
> i have two of these things, so compare and contrast is easy. on one, the
> lockup clutch is starting to slip on hills, the other is not. in all
> other respects, the car is fine. but i have read about partial lock-up
> mode - honda calls it "control mode", so i was wondering. transmissions
> fluids are great, no debris, pink and unburnt, and besides the fact that
> the other car behaves different, i'm convincing myself that this is a
> progressive problem that's getting worse. mileage is just under 200k.
>
> --
> nomina rutrum rutrum


Had a Ford Aerostar van that had a bad shudder around 60 up a slight grade
with the TCC engaged. TCC was starting to slip. I changed the trans.
fluid, went away, never came back. Old fluid smelled fresh, no
discoloration. Just my .02, but it might be worth a try.

Garrett Fulton


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  #6 (permalink)  
Old 27 Jul 2010, 10:21 am
jim beam
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Default Re: torque converter failure

On 07/26/2010 09:22 PM, Garrett Fulton wrote:
> "jim beam"<me@privacy.net> wrote in message
> news:Q6Gdnb-6l9yzu9PRnZ2dnUVZ_tednZ2d@speakeasy.net...
>> On 07/26/2010 04:39 PM, Ed Treijs wrote:
>>> On Jul 26, 1:27?am, jim beam<m...@privacy.net> wrote:
>>>> what kind of mileage do others see before a torque converter lockup
>>>> clutch will start to slip? ?victim is a 90 honda crx.
>>>
>>> That's a pretty general question. There may be a lot of dependency on
>>> the state of the transmission fluid, and whether the converter is
>>> designed to sometimes run in partially-locked mode. My understanding
>>> is that Chrysler's ATF+4 was formulated for partial lockup.
>>>
>>> My '87 K-car's transmission gave no warning before it pretty much
>>> stopped shifting gears. The problem was that some converter clutch
>>> material had gone into the fluid and all over the place and played
>>> havoc with the valve body. I didn't even have any slippage
>>> symptoms.when this happened. So you might want to have the
>>> transmission worked on right away....at least disable the lockup
>>> feature if you need to keep driving the car.

>>
>> i guess that's my question - what is supposed to happen.
>>
>> i have two of these things, so compare and contrast is easy. on one, the
>> lockup clutch is starting to slip on hills, the other is not. in all
>> other respects, the car is fine. but i have read about partial lock-up
>> mode - honda calls it "control mode", so i was wondering. transmissions
>> fluids are great, no debris, pink and unburnt, and besides the fact that
>> the other car behaves different, i'm convincing myself that this is a
>> progressive problem that's getting worse. mileage is just under 200k.
>>
>> --
>> nomina rutrum rutrum

>
> Had a Ford Aerostar van that had a bad shudder around 60 up a slight grade
> with the TCC engaged. TCC was starting to slip. I changed the trans.
> fluid, went away, never came back. Old fluid smelled fresh, no
> discoloration. Just my .02, but it might be worth a try.
>
> Garrett Fulton
>
>


yeah, i already tried that. smoothed out the shifting a little, but
hasn't affected lockup clutch slip.

further to the "control mode" thing, a friend [control engineer] tells
me that some manufacturers use p.w.m. on their lockup solenoid valves to
actually cause slippage in certain situations. curiouser and curiouser.
need to do some more homework.

in the mean time, if anyone knows how long a honda civic torque
converter usually lasts, that would be good to know.


--
nomina rutrum rutrum
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  #7 (permalink)  
Old 27 Jul 2010, 11:38 am
Elle
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Default Re: torque converter failure

On Jul 27, 9:21*am, jim beam <m...@privacy.net> wrote:
> if anyone knows how long a honda civic torque
> converter usually lasts, that would be good to know.


I saw some reports of torque converter failure at honda-tech.com that
might give you an inkling. Seems like I saw a few CRX's a couple years
older than yours failing per posts a couple years old.

Go to honda-tech.com, click on search then advanced search, put in
{torque converter slip} or similar, restrict your search to the CRX
group.


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  #8 (permalink)  
Old 27 Jul 2010, 09:23 pm
hls
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Default Re: torque converter failure


"jim beam" <me@privacy.net> wrote in message
>
> in the mean time, if anyone knows how long a honda civic torque converter
> usually lasts, that would be good to know.
>


Have no idea.. Daughter in law has a hybrid Civic of about 8 years age, and
she started having a little trouble with the tranny.. They sold my son a
tranny
flush, and -believe it or not- it cured the problem.

Regular tranny convertors are likely totally different.

I drove this car last week, by the way. It was no way as quiet as it was
when
they bought it,but still gets 48-54 mpg..

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