89 GP Posted May 9, 2005 Report Posted May 9, 2005 My 89 GP has a 2.8L. auto. It runs great under acceleration and at steady speeds. However when I come to a stop in gear it stalls about 75% of the time. The rest of the time it idles very low ( 200-300rpm) almost stalling.Any suggestions would be appreciated. Quote
GP1138 Posted May 9, 2005 Report Posted May 9, 2005 Idle Air Control valve has probably gone bad or requires cleaning. I'd just go to the junkyard, pull one off a 3.1/2.8 from any W, J, or N body, and throw it on there. Quote
89 GP Posted May 9, 2005 Author Report Posted May 9, 2005 Sorry but I should have mentioned that I had already tried the IAC valve. As well the car was not firing sometimes at startup and found the crank sensor to be cracked. Quote
GP1138 Posted May 9, 2005 Report Posted May 9, 2005 Well paint me red and shoot the fence! Maybe if you had described everything wrong with the car in the first place, I could have helped more! More details, Kemosabe. Did you replace the crank sensor? Did you fix that problem? YOU WANT THE TRUTH? YOU CAN'T HANDLE THE TRUTH!!! Quote
89 GP Posted May 9, 2005 Author Report Posted May 9, 2005 Crank sensor has been changed and the car will start everytime. Thanks for the reply. Quote
GP1138 Posted May 9, 2005 Report Posted May 9, 2005 Try unplugging the TCC clutch solenoid. If the car drives fine, your TCC is stuck on. It's right on the front of the tranny, two/four wire plug. Quote
89 GP Posted May 9, 2005 Author Report Posted May 9, 2005 Thanks for the info GP 1138. However I will need help with knowing where to find the Tcc clutch solenoid. Quote
GP1138 Posted May 9, 2005 Report Posted May 9, 2005 Thanks for the info GP 1138. However I will need help with knowing where to find the Tcc clutch solenoid. It's right on the front of the tranny Take out the airbox, and it's right there, black plug sticking straight out of the transmission. You pretty much can't miss it. Quote
89 GP Posted May 9, 2005 Author Report Posted May 9, 2005 Thanks for the help, I will try it tommorrow. Quote
99RegalGS Posted May 9, 2005 Report Posted May 9, 2005 Try unplugging your battery for a few minutes. Then once you plug it back in do the idle re-learn. My Cutlass was doing something similar a couple weeks ago and that fixed it.... Quote
94CutlassSLCoupe Posted May 9, 2005 Report Posted May 9, 2005 do a re-learn and if that doesn't work...change your fuel filter...happened to my 2.8 cutlass that it would stall/run rough at low rpm but was fine higher up...Plus they are real cheap! Quote
Tru2Chevy Posted May 9, 2005 Report Posted May 9, 2005 I'm gonna vote for the TCC too. My Lumina did the same thing several years ago. Pulled the plug and never looked back. - Justin Quote
cah77388 Posted August 23, 2005 Report Posted August 23, 2005 Just to make sure....I have a 96 cutlass with the 3.1....will the plug still be in the same spot as the 89 GP, and just to make sure, because Im always paranoid Ill do something wrong....Is the plug a round plug... Quote
jeremy Posted August 23, 2005 Report Posted August 23, 2005 Just to make sure....I have a 96 cutlass with the 3.1....will the plug still be in the same spot as the 89 GP, and just to make sure, because Im always paranoid Ill do something wrong...... should be the same spot Quote
cah77388 Posted August 23, 2005 Report Posted August 23, 2005 Well, unplugged what I think is the TCC, but the SES light is on, and the Tranny doesn't change gears...is that normal Quote
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