Rough idle when warm

2003 CADILLAC DEVILLE
130,000 MILES • V8 • FWD • AUTOMATIC
Avatar
EYEU81
  • MEMBER
  • 3 POSTS
Rough idle when warm, have replaced MAP sensor, plugs, cleaned throttle body with Seaform.
Jan 6, 2011 at 5:40 AM
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.
Advertisement
Avatar
FACTORYJACK
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 4,159 POSTS
I thought there was a bulletin at some point for possible camshaft issues. At any rate, it depends on how rough, to suggest a direction. Is there a check engine light along with this symptom? Another thing to look at, would be the fuel trim values, to indicate if the system is going rich or lean during the rough run.
Feb 11, 2011 at 6:36 AM
Advertisement