94 Exp 4wd V6 tranny ?

124,000 miles..
The tranny slips when cold but OK when it warms up..
Also need to know if there is a vacuum line that controls it?
Thanks
Hank

Flip side is the danger that your neck will be broken if you are
rear-ended.

Several supposedly knowledgeable people have told me that changing the
fluid will make it so that it'll slip all the time. Does that sound
right? Also I don't think I can change the filter without a fluid
change.
"Ashton Crusher" > wrote in message
...
> On Thu, 8 May 2008 10:38:55 -0500, "Henry Kolesnik"
> > wrote:
>
>>124,000 miles..
>>The tranny slips when cold but OK when it warms up..
>>Also need to know if there is a vacuum line that controls it?
>>Thanks
>>Hank
>
> There is a vacuum modulator that controls line pressure, the lower the
> vacuum, the higher the line pressure. If it slips when it's cold it's
> likely the internal seals are leaking or the filter is dirty. Put a
> can of seal softener and sweller in it.

There is some (anecdotal) evidence of transmissions on their last leg
failing soon after a fluid change. Presumably debris from the friction
material and other junk is helping the old seals hold.
The seal softener that AC is talking about comes in a small can, so
shouldn't be a problem to simply pour it in. To make room for it, you can
suck a pint or so through the filler tube, using one of those little drill
pumps or some such. No need to change the fluid at that time. Years ago when
I tried that trick on a transmission with symptoms like yours, it made
little difference, and the transmission failed completely a few months
later. Hopefully, you will have better luck.

To change the filter you need to drop the pan. About 1/3 of the fluid is in
the pan and only that quantity will need to be replaced. Unless the filter
is badly clogged with debris, changing it will probably make no difference.
But perhaps it's not such a bad idea to do that, because you'll be able to
see how big is the pile of clutch material shavings in the pan, and that may
be a clue to your tranny's remaining life.

Your transmission is on borrowed time. Enjoy while you can!



"Henry Kolesnik" > wrote in message
...
> Several supposedly knowledgeable people have told me that changing the
> fluid will make it so that it'll slip all the time. Does that sound
> right? Also I don't think I can change the filter without a fluid change.
> "Ashton Crusher" > wrote in message
> ...
>> On Thu, 8 May 2008 10:38:55 -0500, "Henry Kolesnik"
>> > wrote:
>>
>>>124,000 miles..
>>>The tranny slips when cold but OK when it warms up..
>>>Also need to know if there is a vacuum line that controls it?
>>>Thanks
>>>Hank
>>
>> There is a vacuum modulator that controls line pressure, the lower the
>> vacuum, the higher the line pressure. If it slips when it's cold it's
>> likely the internal seals are leaking or the filter is dirty. Put a
>> can of seal softener and sweller in it.
>

Thanks for the info, I'll tell the owner and see what he does. I'll let
you know what he does and what kind of luck he has.
"Happy Traveler" > wrote in message
...
> There is some (anecdotal) evidence of transmissions on their last leg
> failing soon after a fluid change. Presumably debris from the friction
> material and other junk is helping the old seals hold.
> The seal softener that AC is talking about comes in a small can, so
> shouldn't be a problem to simply pour it in. To make room for it, you
> can suck a pint or so through the filler tube, using one of those
> little drill pumps or some such. No need to change the fluid at that
> time. Years ago when I tried that trick on a transmission with
> symptoms like yours, it made little difference, and the transmission
> failed completely a few months later. Hopefully, you will have better
> luck.
>
> To change the filter you need to drop the pan. About 1/3 of the fluid
> is in the pan and only that quantity will need to be replaced. Unless
> the filter is badly clogged with debris, changing it will probably
> make no difference. But perhaps it's not such a bad idea to do that,
> because you'll be able to see how big is the pile of clutch material
> shavings in the pan, and that may be a clue to your tranny's remaining
> life.
>
> Your transmission is on borrowed time. Enjoy while you can!
>
>
>
> "Henry Kolesnik" > wrote in message
> ...
>> Several supposedly knowledgeable people have told me that changing
>> the fluid will make it so that it'll slip all the time. Does that
>> sound right? Also I don't think I can change the filter without a
>> fluid change.
>> "Ashton Crusher" > wrote in message
>> ...
>>> On Thu, 8 May 2008 10:38:55 -0500, "Henry Kolesnik"
>>> > wrote:
>>>
>>>>124,000 miles..
>>>>The tranny slips when cold but OK when it warms up..
>>>>Also need to know if there is a vacuum line that controls it?
>>>>Thanks
>>>>Hank
>>>
>>> There is a vacuum modulator that controls line pressure, the lower
>>> the
>>> vacuum, the higher the line pressure. If it slips when it's cold
>>> it's
>>> likely the internal seals are leaking or the filter is dirty. Put a
>>> can of seal softener and sweller in it.
>>
>
>

"Henry Kolesnik" > wrote in message
...
> Several supposedly knowledgeable people have told me that changing the
> fluid will make it so that it'll slip all the time. Does that sound
> right? Also I don't think I can change the filter without a fluid
> change.


Miine was slipping on my '91 because the fluid level was low because a seal
was leaking. I replaced the seal, filter, fluid, gasket, and added some of
that Lucas Trans Fix with the new fluid. So far it has not slipped again.
This is my second transmission and it was supposedly a rebuilt but I have to
way of knowing they didn't just stick an old trans from a junk yard in
there. Like Ashton said you might have a leaking vacuum modulator. If it's
burning trans fluid your level could be low. You can check the vacuum lines
on the cluster on the intake manifold and look for signs of trans fluid
inside the lines. If you are lucky maybe it's just the modulator. Or a
leak.

> "Ashton Crusher" > wrote in message
> ...
> > On Thu, 8 May 2008 10:38:55 -0500, "Henry Kolesnik"
> > > wrote:
> >
> >>124,000 miles..
> >>The tranny slips when cold but OK when it warms up..
> >>Also need to know if there is a vacuum line that controls it?
> >>Thanks
> >>Hank
> >
> > There is a vacuum modulator that controls line pressure, the lower the
> > vacuum, the higher the line pressure. If it slips when it's cold it's
> > likely the internal seals are leaking or the filter is dirty. Put a
> > can of seal softener and sweller in it.
>