2003 Cadillac Deville Repair Question
Topics covered: Body, Camshaft, Check engine light.
Mileage: 130,000 miles.
Mileage: 130,000 miles.
Asked on January 6, 2011
Rough idle when warm
Rough idle when warm, have replaced MAP sensor, plugs, cleaned throttle body with Seaform.
Answer
Replied on February 11, 2011
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.