Thread: Sticky Throttle

Hey i have a 2000 grand prix gt 3800, 147,000 miles. sometimes after my car warms up, the throttle will stick open. now i am not sure if its the IAC or if its the TPS that have either gone bad or need a cleaning. if someone has any info on this issue that would be greatly appreciated.

If it's the actual throttle sticking then more than likley you need to clean all of the carbon and black stuff that is in the throttle body.


If it's the IAC then do the same and make sure you get the IAC passages real good.


You can clean all of the above with Carb cleaner or something of that nature.

sounds good boss, thats what i figured. i hope that its not the actual cable.

Originally Posted by incubus6930

sounds good boss, thats what i figured. i hope that its not the actual cable.

Spray the cable and linkage while your at it!

it isnt the IAC, i am havig that issue and i have put a new IAC and TPS on my 1999 grand prix GT 3800 series 2, and i have cleaned the throttle body but apparently not well enough as mine is still sticking sometimes.

Please open a new thread.

Thanks.