A transmission with 95K miles and has already had one flush done should
be absolutely fine. Find a better shop, one that will do a real
service (drop the pan, clean it out and replace the filter, and adjust
the bands) and don't listen to those jokers. Isn't Tuffy a muffler
I just paid $2600 for my 2001 Le Sabre (114k miles). That aside, is your
still running well? Sounds like someone is trying to make a quick buck. See
if there is a local reputable shop around, not some big chain and get an
opinion. Or just keep driving until it dies.
I echo the comments of Bill and Mike. Some of these mechanics immediately
suggest a flush with little apparent justification. I am not sold on the
Cost of replacement depends upon where you live. On that car, around here,
you should be able to get a rebuild for $1-2000.
My son just had problems with his Honda hybrid, and the dealership (it is
under extended warranty) mechanic told him they should flush the tranny
THREE TIMES and maybe that would help. Mechanic claimed it was a
maintenance issue, not a warranty issue. Since he had the paperwork to
prove that all maintenance had been done at THAT dealership and on
time, it made the storyline from the dealership a little thin. They, with
faces, agreed to fix the car.
are you experiencing any problems with the trans. or are you just doing
PM? Based on your other posts I suspect the latter in which case you
should find another shop. If you are having actual transmission
problems, you should probably take it to someone that specializes in
transmissions. This is where things get difficult, as most of the time
unless you are lucky your local transmission shop will be an AAMCO or
Cottman franchise, and I've heard enough horror stories about both I'd
never set foot in either one. But you may be lucky and find a good
independent transmission specialist, in which case treat him well and
be very friendly.
I think that the transmission flush is totally bogus, dreamed up by
marketing types. I think that is likely to do more damage that good. It
forces oil backwards from normal flow disturbing stuff that would be best
left alone and may damage the filter since it was not designed to support
flow in that direction. It probably wouldn't remove much of the trapped dirt
anyway. The flushing would not remove the metal that is stuck to the magnet
that is attached to most oil pans. If the filter was replaced and the magnet
cleaned after the flush, I would almost buy into it.
Transmission fluid is not contaminated by combustion by products like engine
oil is. With this in mind it is not necessary to change all the fluid.
Dropping the pan, changing the filter and cleaning the pan is the only thing
that needs to be done.
The only situation that I see a possible benefit to flushing is when the
fluid shows evidence of damage like burning. And then only if the filter is
changed afterwards. Likely though, the damage is already done and it will
This has always been my impression too, Scott, and I have seen this
method touted as a good way of generating extra revenue.
If the car manufacturers felt this was so important, surely they - not the
dealerships - would champion it strongly.
I normally service my own transmissions, but the last time I had the local
independent mechanic do it for me. It was very reasonable, about $65
including filter, a few quarts of 7176 fluid, and adjust both bands.
Now that he has purchased a 'machine', the cost has gone up to $208.
Ill have to ruminate on this.
It's a good revenue generator...but it certainly is not "bogus".
My air tools are all "revenue" generators...I suppose you think
they are "bogus"? Our hoists for lifting cars up are "revenue
generators"......I suppose you'd like me to be jacking the
cars up and working on a creeper like I did in the 80's?
Unfortunately, so many people in these newsgroups are totally
out of touch with what it takes to maintain and repair cars
People on this newsgroup that claim that it is bogus invariably
have never used one, don't understand how they work, and
probably have never even seen one.
Trust me, from someone who uses one everyday...they work
well for what they are intended to do. You often hear people
on here tell us all about how they removed a transmission cooler
line, started the vehicle, allowed the fluid to drain out into a
bucket, once they have drained out a few liters, they top up
the trans, and continue doing it until the fluid has been "exchanged".
These people are lauded as minor heroes for having figured out
a way to exchange their trans fluid.
This is exactly how our machine works, except it's all automatic.
I use it on my own cars, so does everyone in the shop.
Our machine happens to be a "GM recommended" machine.
So it appears that they are quite comfortable with the machine.
The same company that makes the trans flushing machine also
makes the "required" transmission cooler flushing machine that
GM makes all the dealerships buy.
I had to laugh. 30 years ago I read a funny piece that defined a
"rip-off" as anything you paid money for.
A lot of the folks on this newsgroup are quick to volunteer advice on
subjects about which they are completely ignorant, and most of those
same folks are quick to label anybody who knows what they're doing and
charges for repairing a vehicle, especially a dealer (dirty word!), a
thief. In their eyes, the real problem is that you get PAID (another
dirty word) to fix their cars.
The world's not getting any smarter, and some stuff just never changes.
Sounds like you know about this process. Would you please address my concern
about filter damage and not removing sludge from the pan and pan magnet?
Am I right in understanding that it back flushes, that is it reverses the
normal flow direction in the transmission? How much new fluid does it use to
A transmission fluid flush (I think that it's more accurate to describe
it as a "fluid exchange") machine does just that....exchanges the fluid.
This does not mean that it is a replacement for the tried and true
transmission "service". In our shop, we incorporate both procedures
into the overall maintenance schedule of a vehicle. The transmission
service...ie: where you drop the pan and replace the filter is an
extremely important service. If I had a choice of doing only one
of the procedures on my own vehicles...I would definitely choose
the service over the flush.
As far as how the machines work, I can't talk about any other
machines other then the one we use....as I'm not familiar with
them. Our machine is simple, you have two lines that you hook
up to a transmission cooler line "in series". It doesn't matter which
line hooks up to which cooler line as the machine autosenses the
line pressure. The machine maintains the line pressure that the
transmission would normally have through the cooler line and
simply dumps the old fluid coming from the transmission and
feeds new fluid through the other line into the transmission at
the same flow rate and pressure. There is "no" reverse
flushing going on. This would make no sense when working
with an automatic transmission. You "reverse" flush a heater
core....not an automatic. And there are good reasons why
you would reverse flush a heater core, but that's another
As far as the amount of fluid used, we normally run about
12 liters through the average car/truck transmission. This
is a bit more then the total capacity, so that you are sure
you are getting pretty much all of the fluid out. If I get one
that the fluid is black....I'll run enough fluid thru to make sure
I'm getting nothing but fresh clean fluid out of the machine.
We do not leave any old burnt fluid in the machine. The machine
also has internal fluid filters of it's own inside the machine.
On the Allison truck transmissions, we have to run approx 30
liters of fluid through the machine to get it completely clean. Big
On 29 Jul 2006 22:53:49 -0700, firstname.lastname@example.org wrote:
I saw your house yesterday while driving past it on the bus, and you
need your plumbing and electrical system replaced. Both are in real
bad shape and will fail soon.
This is another example of BULLSHIT.
One of two things..... (or both)
THEY WANT YOUR MONEY
THEY DONT WANT TO DO THE JOB
As long as the transmission is working properly, it's NOT toast.
However, is there a reason you took it to the shop, or is it just
regular maintenance? You never said the reason.....
I'd get a second and maybe even 3rd opinion. Get a recommendation
from a friend for a mechanic. Using the yellow pages is not always
the best. This place might be short on work and just figured you were
an idiot and would fall for their scam. Who knows if they will even
rebuild it, or just change the fluid and clean the exterior of it for
Why not just change the fluid and filter yourself? It's not really
that hard to do. I did it last fall on my 89 Chevy. It costed me
about $12 for the filter and gasket, and another $12 for 5 qts of
fluid. Plus a little silicone gasket adhesive. Total cost about $25
and 2 hours of work. One thing, I do is be sure the pan is clean. I
scrubbed it with dish soap, then hosed it out with water. Of course
use a rag to dry and be sure it's completely dry. I also greased the
linkage at the same time.
As for your question about the cost, why even bother asking a question
like that on a newsgroup. What costs $1000 in California may only
cost $300 in Ohio and in the UK, who knows how many pounds it costs.
Asking prices on the newsgroup is assenine. Call local transmission
shops and get estimates. One other thing, you can often buy a rebuilt
trans at a parts store, far cheaper than getting yours rebuilt. Of
course you have to find someone to replace it for you.
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