The EGR valve may stick open causing a rough idle and the Check Engine Light light to illuminate. Our technicians tell us that a piece of carbon may become stuck in the valve causing this problem. Cleaning the valve will usually correct this condition, in some rare cases the valve will need to be replaced.
Check Engine Light/Rough Idle Due to Stuck Open EGR Valve on GMC Safari
3 people reported this problem
1 person shared problem details
2000 GMC Safari177,319Visitor
Vehicles equipped whit a 4 speed automatic transmission may develop a harsh 1-2 shift and/or il...
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
I have an intermittent code 452. the service engine light will come on, check the code get 452...
Problem occurred on Sunday 1/2/2011 the van was trying to stall at a light. Managed to get it...