I drove my car fine saturday... Shifted fine and went to drive it sunday and there was no 3rd gear .... When it shifts into third gear it just will rev and not accelerate... Anyone have any ideas if this is a sensor? if so any one every have this problem or any suggestions as to what it might be?
transmission sis a 4L60e automatic transmission by the way.

Thanks for your help...

 

Could be a few things, but when my 96 did this, it turned out the input drum had failed. There is a groove at the edge that retains some of the clutch packs (don't recall which as this was 6 years ago) and the tabs kept shearing off. Not sure if this is a common issue or YOUR issue, but one of the tranny experts will hopefully chime in.

 

Did you replace this your self or is this a complicated fix if thats the issue?

 

I didn't fix it myself. The tranny was done by a well-known race tranny specialist at the far east of Ohio. He believed my issue was caused by excessive line pressure, but I got rid of the car before I had a chance to investigate that. I was using a Hypertech programmer at the time, and it's possible the increased firmness built into the tranny with the rebuild, combined with the shift firmness improvements of the Hypertech, created a situation with too much line pressure, although I had completely uninstalled the Hypertech tuning after the rebuild. Unless you have specialized tranny tools and knowledge, I wouldn't tackle this job yourself.

 

I just got my car back from the shop today... Said the transmission is basically junk..
3 of 4 sensors are bad
and most of all the bands are shot and the computer showed slippage in all the gears.

Good news is found another one i can just bolt right up to it..