Hey guys just had my Transmission rebuild and i noticed it doesn't seem to shift as fast or as hard. Any reason why this would happen and also just wondering if a shift kit shortens the life of a transmission?
|
|
04-02-2008
Hey guys just had my Transmission rebuild and i noticed it doesn't seem to shift as fast or as hard. Any reason why this would happen and also just wondering if a shift kit shortens the life of a transmission?
04-02-2008
Did you replace stock for stock or did either have a shift kit installed? Depending on how the rebuilt trans was built will play a large role in how well it will shift. Also the pcm will need a bit of time to relearn to the new transmission to make shift firmness adjustments as it aims for a window of acceptable or unacceptable shift timing performance. If you went from a trans with a shift kit to one without one then the pcm likely learned to soften up the shifts due to the shift kit and now has to compensate for that. Again it all depends on how well the build was and what was replaced and or upgraded.
04-02-2008
Depends on what shift kit you go with. It will actually help to firm the shifts up, helping your tranny but if you go way too firm you will start breaking parts. A shift kit or checking on your line pressures and shift points in the pcm would help you.
Trannyman will be here shortly...
04-02-2008
I wasn't lying about trannyman.... lol
04-03-2008
It was done by Amco and they said there was some kind of shift kit put in but they never really explained what it did. so i have no idea what exactly they did. in that sense
04-03-2008
If your stock trans was shifting "hard" before the rebuild it was most likely due to it having some issues, so now if it is fixed properlly it shouldn't shift like it did before. You got to remember these trans were programmed to have long soft shifts so no one would notice it shifted in case someone was drinking coffee in your passanger seat. Even with the transgo shift kit you aren't going to get neck breaking shifts, after all they aren't in the busniess of breaking things. Aamco is a different breed of transmission builder. They have their own rebuild kits that consist of nothing. They for some reason get different rules on what a rebuild is. They can charge extra for a band, but the rest of us have to cover every wearable componet, which is how it should be. Are you sure you got a rebuild, and not a repair? Most Aamco's don't do full rebuilds, unless you pay over 3 grand.
04-04-2008
No that u mention it i thin it was a repair but a lot of stuff was replaced. Tranny got dropped on a concrete driveway when it got driven into a stupid ditch. Yea thats how it shifts now but i thought with the 4T65E-HD tranny when the performance shift was on it was supposed to shift a little quicker and harder? Please correct me if im wrong.
04-04-2008
If you still have a stock pcm in the car you wont notice a whole lot of difference between performance shift being on or off. The shift points are higher with it on and the shift firmness is a slight change. The aftermarket pcms make a lot of changes in this area and you will notice a difference when it is on and they also raise the shift points while perf shift is on.
04-05-2008
Alright yea ive got a intense pcm at home waiting for me when i get back in about 5 weeks. hopeful that works
| « Previous Thread | Next Thread » |
| Tags for this Thread |
| Bookmarks |
Bookmarks |
