Buick Century Problem Report
Buick Century Check Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
2003 Buick Century code P0442. Evap system (small leak). Bought replacement fuel cap from GM (I read that it must be from GM). No "service engine light" after 50 miles. - jmarovi
Replaced worn gas cap. - Visitor
My check engine light was on continuously. I learned that my son had recently put gas in the c...
check engine light comes on at 15 mph and goes off when I get to 45 mph.
The intake manifold gasket may develop and external engine oil or coolant leak. In some cases,...
no traction light and service vehical soon light is on. and the brake light goes on and off. ha...