Cadillac Seville Problem Report
Cadillac Seville Rough Idle Due to EGR Valve Sticking Open
car will not idle can drive with both feet
The EGR control solenoid or EGR valve may fail causing the Check Engine Light to illuminate.
I have a 1990 cadillac seville. It has been missfiring on me and it backfires and looses power...
failed Nox test for smog possible EGR valve i want to replace but been told it might be a vacum...