TRANSTECH Transmission Service

blkZ28Conv · 09-05-03, 06:44

I guess this could be considered internal or mechanical detailing.

Has anyone had this service performed on their automatic trans?
Did you replace your filter or just replaced the fluids? Any problems or important points to consider?

TIA

Scott P · 09-05-03, 09:09

THe most important part is to replace the filter. Many shops don't take that step and just change the fluid out. You end up with clean fuid being pushed thgouh a dirty and possibly clogged filter. Plus, by dropping the tranny pan, you can see if there is an excess of metal shavings collected.

StickKing1 · 09-05-03, 09:17

I would agree that the best case scenario is to drop the pan and change the filter and the trans oil...but if you can't do that or aren't willing to pay the price to have someone do it, I would still give a

to a trans flush. Even without changing the filter, the difference can be amazing! I used to have this done on my old Delta 88, 'cause I was lazy with it and didn't want to go through dropping the pan. It worked great!

andriver · 09-05-03, 09:21

I usually alternate between having my system flushed and having the pan dropped and filter changed. You get the best of both worlds.

blkZ28Conv · 09-05-03, 09:40

Thanks for the responses guys.

For peace-of-mind I will have them change the filter with the TransTech flush. We have a shaky Chevy dealership here in town and I was worried about their response to changing the filter - "the flush will clean the fliter no real need to change." I am concern with what happens to the crud that is being dislodged from the filter by this process.

Fortunately we have a great Chevy dealership (Feller) about 20 miles away that is honest and trustworthy. They stated that either method would be okay.

BradE · 09-05-03, 09:41

I agree with Scott, it's very important to change the filter as well. Most shops don't do this anymore since flush machines are now the standard method. They will probably tell you the flushing backflushes the filter, nonsense. The filter should be changed, pure and simple.

Aurora40 · 09-05-03, 11:42

Hey BlkZ28, do you have a link to this product? I'm guessing TransTech is just some stuff you run through the tranny? Some of those flush products are caustic and can damage internals if left too long. Plus, they can crap up the tranny fluid if they aren't completely flushed out.

My plan is to change the fluid and filter often and not to have those types of flushes done. I'm just always hesitant when stuff like that is used.

I sure wish GM included drains in their tranny pans, though... Dropping a full pan sure is a pain. I believe the 4T80-E has very little fluid in the pan, though, and has an internal drain once the pan is pulled.

StickKing1 · 09-05-03, 12:03

Sorry, I should have mentioned that...I never would use an actual "flush product" trough my tranny for reasons that Aurora mentioned. When I had it flushed, they just run new trans fluid through the system and push out the old until what is coming out of the cooler lines is bright pink again...I think they used to use up about 15 quarts in the process.

EDIT: Aurora, The 4T80-E only has a couple quarts at most in the pan, so not too much of a mess. Most of the trans oil is sitting in the torque converter, I don't specifically remember any sort of internal drain.

blkZ28Conv · 09-05-03, 12:30

Hey Aurora 40,
I need to check to make sure this is just a trans fluid replacement (total) deal and not a cleaning solution flush system followed by trans fluid replacement. I too am not a fan of caustic solutions in my transmission or engine. :scared

TransTech III is the apparatus used by most shops.

mlebarron · 09-05-03, 12:36

I'm replacing my fluid in my Jeep soon as well...

So are you guys saying the the flush system is not really a good idea? or not a good idea if they use a special flush product, as opposed to just running fluid through it like Aurora40 said?

Is it that beneficial to have it flushed as opposed to draining it myself and replacing?

Thanks!
Michael

BradE · 09-05-03, 12:44

Most shops don't use a chemical flush, it's just a fluid exchange through the transmission cooler line. The fluid exchange has become known as a "flush".

blkZ28Conv,

The machine you speak of is also known as the "T-Tech", which is widely used. This machine is fluid exchange only from my understanding, no chemical used.

Lowejackson · 09-05-03, 01:50

A perfect question for Bobistheoilguy.com forum

Steven