The thread above mine is pretty much the only correct one on here. I worked at GM dealers for 10years as a drivetrain tech and rebuilt many 4L60-E's. I would check the bellhousing and the stall in the converters, im thinking the speed sensor is the same and the main harness is too. 97's were...
TCC DOES NOT APPLY ALL THE TIME, it occures when vaccum is high and throttle is steady and most of the time in a drive and over drive ranges. IN OTHER WORDS WHEN YOU APPLY A LOAD TCC WILL RELEASE or WILL NOT ENGAGE. YOU GUYS NEED TO READ THE FIRST POST BEFORE REPLY-ING.
this was directed to...
"Sounds like classic torque converter lockup clutch shudder. If it was my van I'd change the fluid first if it has never been done- and quick to prevent accelerating clutch wear, and then go from there."
DRWEBB, You must not have read the begining, tcc wont engage at 5-15 miles an hour. That...
What type of downstream O2 sensors does it use, are they narrow band???
I am wondering if you have some type of exhaust leak causing the lean signal.
I didn't think you can use simulators on CAN. I used a simulator on obd2 and it worked great on my turboed civic.
ITS CAN RIGHT???
patprimmer
"I totally believe in lifetime fill for oil in ATs."
I do not believe in that at all. The fluid breaks down. I have been through many trans and the ones that i went through most of them never had a trans service. The customer could not show a history and checking vehicle records...
Replace the presure solenoid- but do your presure check first to verify, if you pull the pan and it looks normal for 100k you will probably fix it by replacing that solenoid.
