If anyone can help me with a problem i have a 96 olds cutlass supreme it has a 3.1 ltr and the problem i am having is that after the car starts the rpm needle seems to jump sometimes for 10 seconds sometimes longer but if u try to leave when it is jumping then the whole car shakes and jumps. It does go away after u wait for it to stop and it does seem to happen morewhen its hot out not so much when its cool. I would rather just be able to start my car and leave then have to wait for it to settle. Oh yeah and when i start it in the morning there seems to be no problem with it. If more info would help Iwill tyr to find some more out. I really like the car and dont wanna sell it If anyone has any advice or has been through the same thing I would appreciate the help. THANKS

 

I HAD A SIMULAR PROBLEM RECENTLY WITH A GMC JIMMY. TURNED OUT TO BE A IDLE CONTROL MODULE. NOT A BIG DEAL TO REPLACE.