Chevrolet Lumina Problem Report
Chevrolet Lumina Rough and/or High Idle Due to Engine Vacuum Leak
The upper intake manifold gasket and/or a PCV vacuum lines/hoses can develop vacuum leaks with age. This type of leak can result in a higher that normal or rough idle.
Problem developed after replacing temperature sensor. Found vacuum leak on PCV line where it "T"s into throttle body/Intake. Replaced Vacuum line. - mwood
Current problem. - Visitor
The intake manifold gasket may develop and external engine oil or coolant leak. In some cases,...
How long should an intake manifold gasket replacement(upper and lower) last?
I am getting poor gas mileage and oil in the throttle body. Car is running rich(code 45). It...
Leak of and orange colored fluid and water are leaking from the manifold and we were told hose...