GMC Sonoma Problem Report
GMC Sonoma Rough Idle and Check Engine Light Due to Sruck Open EGR Valve
4.3L V6 multi-port FI only
The exhaust gas recirculation valve (EGR) may stick open causing a rough idle and the Check Engine 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.
Rough Idle. Have to have distributor checked. The carbon issue is alway and issue. I even got a gasket from napa that had screen in it and it is still causing this issue. Please contact me if someone has a real fix. rfnut2001@yahoo - Visitor
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