I have an 87 Olds Cutlass Cierra, I have replaced the starter, and alternater. I was just wondering when I start my car my revs are all over the place. They jump from almost 2000 and then drop to 800 when it gets that low my car stalls. I really don't want to have to 2 foot drive my car. Someone said it was my O2 or knock sensor. Some ppl say they don't even think that cars have knock sensors. So I am really confused.
2006-12-12 06:42:16 · 6 answers · asked by sweetblue_cherry 1 in Cars & Transportation ➔ Maintenance & Repairs
The idle on your car is controlled by the IAC (idle air control motor). It could be malfunctioning, or it could be a vaccum leak causing the same effect.
2006-12-12 06:46:44 · answer #1 · answered by fairway8u 2 · 0⤊ 0⤋
The Idle Air Control Motor controls your idle> By replacing your starter you unhooked the battery erasing the idle strategy your car. You may get lucky go for a road test trying to get to a highway drive it hard wide open throttle for a couple of seconds. Then drive normal . This can sometime relearn the idle .If this does not work you will need to go to a repair shop to have it done by a scanner.
2006-12-12 14:51:00 · answer #2 · answered by Rudedude 4 · 0⤊ 0⤋
A car of the age you describe would not have knock sensors .The most likely problem is a sticking throttle cable or a vacuum pipe split or displaced when you replaced your starter etc.Hope this helps Regards MIck UK
2006-12-12 14:55:17 · answer #3 · answered by mick 6 · 0⤊ 0⤋
On modern cars it is the idle air control valve, but on this old of a car that could still have a carburetor it would be the idle stop solenoid that needs to be adjusted, assuming you have a carburetored fuel system.
2006-12-12 14:57:30 · answer #4 · answered by gary o 7 · 0⤊ 0⤋
Sounds like IACV, or a vaccum leak.
2006-12-12 15:02:30 · answer #5 · answered by bob b 2 · 0⤊ 0⤋
take it to the shop to get fixed good luck
2006-12-12 14:47:30 · answer #6 · answered by U can't B like me 5 · 0⤊ 0⤋