I was reading this from FormulaLT1 and just wondering about my own transmission issues.
"Also the Corvette Servo deliver's a faster firmer 1-2 Shift. and The pre-96 4L60-e tranny's in F-body's didn't controll the point when you torque converter lock's up with Flywheel usually around 35 MPH and the cars with the perform button used this style 4L60-e tranny."
Okay, here is my issue (isn't there always something?).
On my 96 Trans Am, which is an auto, I got the transmission rebuilt about 1 month and a half ago. I thought everything was fine and they actually said they upgraded all the parts to the new ones that are out there. Whatever they are talking about I have no idea, when it comes to tranny I know nothing. They also said they are bullet proof? WTF?
I just want to know if it won't break for 100,000 miles or so.
The main issue I'm getting to is the shifting. When I'm cruising down the road...sometimes I can tap the gas and hear a slight knock. Don't know whether its the trans or the suspension or a mount.
Now, another is when I'm coming to a stop and it shifts back down to first, I hear a thump sound. I solid thump. Once again I'm not sure if its a mount or suspension or tranny.
Before this was rebuilt they were telling me they had to replace the convertor because it was locking up. Could this be the noise? If they rebuilt it...I would hope that the issue was resolved. Could it be a trans mount? Or could it be my differental? Of course the differental was resealed and looked at before the tranny was rebuilt and everything was okay.
Also it was making the same noise before it was rebuilt.
Any clues would help. I think I'm going to wait for some ideas then head back to the tranny people who worked on it.