After a two year battle with a Idle & Stalling problem, I finally replaced the IAC & Plug connector (both original & 16yrs old) and this cured my problem finallly. No more Low idle after restarting and stalling. One less headach. That valve was not worth taking apart and cleaning ( big time carbon build up) same for the plug connector. Thanks to the guys that gave me the P/N's to track down these parts:hail:

 

Post the part numbers and your comments so that others can benefit from your experience (especially if it comes up in a search). Returning the favor is a much more satisfying way of thanking the people here. Glad you got your problem fixed.

 

Part Numbers for the following IAC Valve Repair.

IAC valve- GM p/n 25527077 *
Four Prong Connecter Plug Only- p/n W64 at Yearone**
" " with wire attached-GM p/n 12126449 ***


* $42.58 @ GMPARTSDIRECT
**$10.30+S/H ouch! @ YEARONE
***Very exxpensive $94.03 @ Dealer & $56.00 @ GMPARTDIRECT.
Note: Go with plain plug and attach the old wires.

I hope this Info will be helpful, If you have the same problem.

 

The IAV wasn't worth taking apart and cleaning? Was the pintle damaged? Other than that or failed stepper coils, there should be no reason an IAC can't be salvaged.

 

Just old age (16yrs) and not worth the effort on the old part.