Rev's at start up

[2003GPGTP]

Hi guys,

I have a question for all the knowledgable members at Grand Prix Forums . Everytime I start my car the RPM's rev up to about 2500 and then bounce up and down between 1200 and 2500 repeatedly until I put the car in gear ( either drive or reverse ). After the car is in gear the issue stops.

Can anyone offer any insight into what this might be?

Thank you.

[torq455]

IAC gummed up or bad? What car and how many miles?

[2003GPGTP]

The car is a 2003 GP GTP. It has 120,000 km ( Im in Canada ). It has done this for a while though. Probably started around 80,000 km.

Thanks

[DaytonaGTP]

99% sure its the idle air control valve. you can try and clean it first with some carb cleaner. if not then jusr replace it.

[2003GPGTP]

Thanks you for the reply. I will try to clean the IAC. Can you tell me where I would find it exactly?

Thanks

[DaytonaGTP]

kinda like this right here. itll be on your throttle body. you cant miss it

[2003GPGTP]

Excellent. Thanks alot man. I really appreciate it. I have some sensor cleaner I used on the MAF a while ago. Im going to hit it with that and see what happens.

[Bio248]

or its a vacuum leak.