transmission drain and refill

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Old 11 Nov 2004, 10:01 am   #1 (permalink)
badgolferman
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Default transmission drain and refill

I'm getting ready to drain the transmission fluid in both my 94 Camry and 97
Camry. They are both 4 cylinder models.

The 97 had a flush by the dealer about 2 years ago and just went over 100K
miles. Its fluid is looking a bit dark but there hasn't been any problems
since they flushed it out. The 94 I drained and refilled last year and has
160K miles. This time I will do the differential too. It seems to be
shifting a bit funny when cold in the mornings and sometimes has quick hard
shifts but mosty when cold. I bought the Valvoline Max Life Dexron III ATF
and plan on using that.

Are there any gotchas or other things to consider? I really don't want to
take the pan off and clean the filter.


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Old 11 Nov 2004, 10:28 am   #2 (permalink)
doncee
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Default Re: transmission drain and refill

"badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in
news:2vhgliF2mao0kU1@uni-berlin.de:

> I'm getting ready to drain the transmission fluid in both
> my 94 Camry and 97 Camry. They are both 4 cylinder models.
>
> The 97 had a flush by the dealer about 2 years ago and just
> went over 100K miles. Its fluid is looking a bit dark but
> there hasn't been any problems since they flushed it out.
> The 94 I drained and refilled last year and has 160K miles.
> This time I will do the differential too. It seems to be
> shifting a bit funny when cold in the mornings and
> sometimes has quick hard shifts but mosty when cold. I
> bought the Valvoline Max Life Dexron III ATF and plan on
> using that.
>
> Are there any gotchas or other things to consider? I
> really don't want to take the pan off and clean the filter.
>
>
>


You do understand that a drain & refill only replaces about 25%
of the tranny fluid at most. The recommendation using drain &
refill is doing it about 4 times a year should pretty much
replace all of the fluid.
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Old 11 Nov 2004, 10:30 am   #3 (permalink)
ROBMURR
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Default Re: transmission drain and refill

>I'm getting ready to drain the transmission fluid in both my 94 Camry and 97
>Camry. They are both 4 cylinder models.
>
>The 97 had a flush by the dealer about 2 years ago and just went over 100K
>miles. Its fluid is looking a bit dark but there hasn't been any problems
>since they flushed it out. The 94 I drained and refilled last year and has
>160K miles. This time I will do the differential too. It seems to be
>shifting a bit funny when cold in the mornings and sometimes has quick hard
>shifts but mosty when cold. I bought the Valvoline Max Life Dexron III ATF
>and plan on using that.
>
>Are there any gotchas or other things to consider? I really don't want to
>take the pan off and clean the filter.
>

You should do the differential each time, it is a seperate cavity in
the 4 cylinder models and lots of fun to drain and refill!
I would clean the pan and filter every other change.
I think every 30,000 miles is when service is needed.
If you just opened the drain plug you only got out 2-3 quarts max
it holds a lot more than that. I have mine flushed out completely
no cleaners are added. My mechanic removes a hose to the
trans and puts it in a big bucket and while the motor is running adds
new fluid as it is pumping the old out.Someone in this group did that
a while back himself, maybe you can google for how he did it.
My 97 has 190,000 miles shifts flawlessly.
Rob


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Old 11 Nov 2004, 11:20 am   #4 (permalink)
John Roe
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Default Re: transmission drain and refill

If you never had the filter changed I would change it. Also in the pan
there are some magnets to collect small metal particles,these need to be
cleaned also. I have a 94 with 180,000 mi. and I drain and refill the
transmission at every oil change. Its only 2 qts. If your going to
change the differential oil you need gear oil not ATF, a funnel and
about 2 ft. of 1/2" tubing to put the oil in from the top.

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Old 11 Nov 2004, 11:41 am   #5 (permalink)
badgolferman
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Default Re: transmission drain and refill

>If your going to
> change the differential oil you need gear oil not ATF, a funnel and
> about 2 ft. of 1/2" tubing to put the oil in from the top.


The manual says the differential is transmission oil. So does the Haynes
manual. Why do you say gear oil?



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Old 11 Nov 2004, 12:27 pm   #6 (permalink)
ROBMURR
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Default Re: transmission drain and refill

>I have a 94 with 180,000 mi. and I drain and refill the
>transmission at every oil change. Its only 2 qts. If your going to
>change the differential oil you need gear oil not ATF, a funnel and
>about 2 ft. of 1/2" tubing to put the oil in from the top.


WHOA! wrong answer. it uses Dexron ATF, never gear oil!
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Old 11 Nov 2004, 02:21 pm   #7 (permalink)
John
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Default Re: transmission drain and refill

The filter is important. It's only one gasket and a few more bolts but it's
your car.

"badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in message
news:2vhgliF2mao0kU1@uni-berlin.de...
> I'm getting ready to drain the transmission fluid in both my 94 Camry and

97
> Camry. They are both 4 cylinder models.
>
> The 97 had a flush by the dealer about 2 years ago and just went over 100K
> miles. Its fluid is looking a bit dark but there hasn't been any problems
> since they flushed it out. The 94 I drained and refilled last year and

has
> 160K miles. This time I will do the differential too. It seems to be
> shifting a bit funny when cold in the mornings and sometimes has quick

hard
> shifts but mosty when cold. I bought the Valvoline Max Life Dexron III

ATF
> and plan on using that.
>
> Are there any gotchas or other things to consider? I really don't want to
> take the pan off and clean the filter.
>
>



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Old 11 Nov 2004, 04:51 pm   #8 (permalink)
Steve G
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Default Re: transmission drain and refill

In my opinion, this is one of those cases where 4 x 25% does not equal 100%.
The remaing 75% contaminates the new 25% and so on. If the Op really wants
to do his vehicles good he will spend the $70 or so and have it
professionaly flushed and changed. Many of the quick lube places now have
the equipment to do it, but a trans shop is the best bet.

The quick lube places disconnect one cooler line and connect there machine
in series in the line. As the old fluid is being pumped out (engine running)
the new fluid is being injected. Probably gets about 90% or better of the
fluid.
The trans shops remove the pan and install their equipment in place of the
trans pickup screen. Engine is run and only new fluid is picked up and old
fluid is being dumped out as it returns to the trans (pan is off while this
is done). Probably gets near 100% of the fluid and actually flushes some
debris in the process. Pan gets cleaned while off and new filter installed.

In my opinion, draining what fluid you can, even removing the pan and
changing the filter, is a waste of time and money.
Steve G.

"doncee" <nodbcspam9814wanted@swbell.net> wrote in message
news:Xns959E6AA9D41DEmedbcSWBEll@216.196.97.132...
> "badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in
> news:2vhgliF2mao0kU1@uni-berlin.de:
>
> > I'm getting ready to drain the transmission fluid in both
> > my 94 Camry and 97 Camry. They are both 4 cylinder models.
> >
> > The 97 had a flush by the dealer about 2 years ago and just
> > went over 100K miles. Its fluid is looking a bit dark but
> > there hasn't been any problems since they flushed it out.
> > The 94 I drained and refilled last year and has 160K miles.
> > This time I will do the differential too. It seems to be
> > shifting a bit funny when cold in the mornings and
> > sometimes has quick hard shifts but mosty when cold. I
> > bought the Valvoline Max Life Dexron III ATF and plan on
> > using that.
> >
> > Are there any gotchas or other things to consider? I
> > really don't want to take the pan off and clean the filter.
> >
> >
> >

>
> You do understand that a drain & refill only replaces about 25%
> of the tranny fluid at most. The recommendation using drain &
> refill is doing it about 4 times a year should pretty much
> replace all of the fluid.



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Old 12 Nov 2004, 07:40 am   #9 (permalink)
Daniel M. Dreifus
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Default Re: transmission drain and refill

"Steve G" <NospamforSteve@Steve-Garner.com> wrote in message news:<o1Skd.194569$%k.129742@pd7tw2no>...
>
> In my opinion, draining what fluid you can, even removing the pan and
> changing the filter, is a waste of time and money.


There is no "filter" as one ordinarily considers filter media. There
is a metal screen which, according to Toyota does not require
replacement.

I do believe it is helpful to clean the inside of the pan though.
There can be kind of slimy darkened residue clinging to it.
Believe recommendation for fluid changes is 30,000 miles, so sounds
like the OP is overdue.
In that case, exchaning all the fluid with a machine, is a good idea,
then afterward, you can keep up by simply removing the drain plug, and
re filling.
BTW there are three magnets stuck to the pan, so if you remove the pan
you can clean those also.
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Old 12 Nov 2004, 07:50 am   #10 (permalink)
Daniel M. Dreifus
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Default Re: transmission drain and refill

"badgolferman" <REMOVETHISbadgolferman@gmail.com> wrote in message news:<2vhgliF2mao0kU1@uni-berlin.de>...
> I really don't want to
> take the pan off and clean the filter.


Here's another idea:
Just drain the fluid every time you change the oil for a while.
If you change every 5,000 miles, you're changing transmission fluid
six times in 30,000 miles which is equivalent to changing it all with
a machine.
If is helpful to clean the inside of the pan though. Just tighten the
little bolts evenly and do not over tighten. It's only one gasket not
really very difficult. If you look up the torque spec for the trans.
pan bolts, it is given in inch pounds - divide by 12 to get foot
pounds, comes out to something like 5+ ft. lbs., so you don't want to
crank on them, just pull gently until you feel resistance increased.
Last time I replaced the gasket, I found two bolts stripped by prior
mechanic. Fortunately, those locations threaded through the case, so
longer bolts solved the problem. Looks like the transmission case is
aluminum alloy, so exercise caution.
As previously mentioned, there is no filter. If you really wanted to
go one step further you could remove the screen and clean it in
solvent, but imho, if you're draining the fluid regularly, wouldn't be
necessary.
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