Unstable RPM Idle

[OldMan9]

I took out the AIR CONTROL VALVE and cleans it w/BRAKE CLEANER. I started the car up and after driving for 15 minutes the high Idle has gone down a little and I wonder why it didn't stop the unstable RPM idle completely????? HELP. thanks

[cherryelky305]

whats the issue? by unstable do you mean it revs up high then down low, in a repetitive pattern? If thats what its doing, then its the IAC valve (idle air control valve)

you said you cleaned it but it might just be flat out bad, check it again. If it visually looks ok, but you still have an issue buy a new one.

[OldMan9]

Originally Posted by cherryelky305

whats the issue? by unstable do you mean it revs up high then down low, in a repetitive pattern? If thats what its doing, then its the IAC valve (idle air control valve)

you said you cleaned it but it might just be flat out bad, check it again. If it visually looks ok, but you still have an issue buy a new one.

Yes, I now ordering a new IACV and still waiting for the part; but i do appreciated your help. Thank you.

[OldMan9]

Originally Posted by oldman9

yes, i now ordering a new iacv and still waiting for the part; but i do appreciated your help. Thank you.

i just installed a new iacv (idle air control valve) onto my car and the problem is still the same...............i did do all the air, fuel hoses cleaning and even put a bottle of (sea foam) fuel injector cleaner to clean injectors and fuel lines but the problem doesn't to go away............