2004 Buick Century Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Buick Century
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2004 Buick Century ProblemsIntake Manifold Gasket May Leak Coolant or Engine Oil
The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid.
2004 Buick Century QuestionsWhat would cause vehicle to not idle after replacing TPS (1 answer)
It happens all the time sometimes it will die while driving as well. OBD is still giving faulty TPS reading.