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From: ATHiker95 on 27 Apr 2010 00:16
I've got a 2002 Toyota Corolla. It was suggested at my AAA car center
that I need to flush my tranny fluid. They use some sort of power
flush to drain the system. Is this a good idea or a bad idea? Will I
break lose accumulated junk that could potentially screw up my tranny
or is the cleaning worth that risk? Got about 105,000 miles on it.
Bought the car with 88000 - don't know how often or if it has ever
been flushed/drained,etc.

Thanks,
Mark
From: ---MIKE--- on 27 Apr 2010 07:05
The best thing to do is just drain and refill. Flushing COULD stir up
stuff that is best left as is.


---MIKE---
>>In the White Mountains of New Hampshire
>> (44° 15' N - Elevation 1580')

From: Mike Hunter on 27 Apr 2010 10:20
Not too worry. AT fluid contains more detergents than any other lubricant.
It will clean out all of that "junk." When they hook up the flushing
machine if pumps tranny fluid backward though the tranny, including the
filter, until it runs clean then let it filled with all new fluid.


"ATHiker95" <mholmes(a)gmail.com> wrote in message
news:78d5d8c0-7513-48c2-8327-4258f56d05e3(a)29g2000yqp.googlegroups.com...
> I've got a 2002 Toyota Corolla. It was suggested at my AAA car center
> that I need to flush my tranny fluid. They use some sort of power
> flush to drain the system. Is this a good idea or a bad idea? Will I
> break lose accumulated junk that could potentially screw up my tranny
> or is the cleaning worth that risk? Got about 105,000 miles on it.
> Bought the car with 88000 - don't know how often or if it has ever
> been flushed/drained,etc.
>
> Thanks,
> Mark


From: C. E. White on 27 Apr 2010 10:50

"Mike Hunter" <Mikehunt2(a)lycos,com> wrote in message
news:4bd6f2e6$0$22700$ce5e7886(a)news-radius.ptd.net...
> Not too worry. AT fluid contains more detergents than any other
> lubricant. It will clean out all of that "junk." When they hook up
> the flushing machine if pumps tranny fluid backward though the
> tranny, including the filter, until it runs clean then let it filled
> with all new fluid.

No way I am letting any random shop do a reverse flush on any
transmission I own. Pumping fluids backwards is not a good idea, no
matter what Jiffy Lube and like "experts" claim. I have no problem
with fluid exchange machines, but I plan to always say no to reverse
flushes. My preferred strategy is to routinely change a portion of the
fluid every 25,000 miles are so (the portion of the fluid you can
either drain or suck out witthout disassembly). As long as the fluid
looks nice and clean, I have no worries.

Ed


From: Ray O on 27 Apr 2010 12:12

"ATHiker95" <mholmes(a)gmail.com> wrote in message
news:78d5d8c0-7513-48c2-8327-4258f56d05e3(a)29g2000yqp.googlegroups.com...
> I've got a 2002 Toyota Corolla. It was suggested at my AAA car center
> that I need to flush my tranny fluid. They use some sort of power
> flush to drain the system. Is this a good idea or a bad idea? Will I
> break lose accumulated junk that could potentially screw up my tranny
> or is the cleaning worth that risk? Got about 105,000 miles on it.
> Bought the car with 88000 - don't know how often or if it has ever
> been flushed/drained,etc.
>
> Thanks,
> Mark

If you look at the owner's manual for your car, it lists intervals for
changing (drain and refilling) transmission fluid but it does not list
flushing transmission fluid.

If a transmission has been flushed routinely, then a flush shouldn't be a
problem, but if it has never been flushed before, I wouldn't start now.

In my experience, I've found that when a transmission is flushed for the
first time with over 80,000 miles, a problem seems to crop up within a year.
--

Ray O
(correct punctuation to reply)


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