1990 Buick Century iac valve

1990 BUICK CENTURY
176,000 MILES • 4 CYL • FWD • AUTOMATIC
Avatar
CHADBIRD1
  • MEMBER
  • 2 POSTS
i keep having a code come up for the iac valve but i have replaced it and the idle is running way to high. when driving down the road it idles at about (25-30) mph.. can anyone help with this??
Mar 15, 2009 at 9:25 AM
Advertisement
Avatar
BMRFIXIT
  • ✓ASE Certified Mechanic
  • 19,053 POSTS
  • ASE Certified Mechanic
Check for any vacuum leaks
check IAC wiring back to the ECM
Mar 15, 2009 at 8:43 PM
Avatar
CHADBIRD1
  • MEMBER
  • 2 POSTS
ok i will try that and gheck back after i do.. thanks
Mar 15, 2009 at 8:57 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.