2005 Pontiac Bonneville Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2005 Pontiac Bonneville

The intake manifold gaskets can develop external engine oil or coolant leaks. The intake manifold will need to be removed and the gaskets replaced to correct this issue. In some cases the plastic intake manifold my be damaged requiring replacement.

The mode and temperature door actuators may fail causing improper air flow or temperature output from the heating and AC (HVAC) system.

The mass air flow or crankshaft position sensor may fail causing the engine to stall intermittently. Proper diagnoses will be necessary to determine the cause of any stalling condition.

See More Problems 20

I've replaced water pump, thermostat, flushed radiator. Car still overheats. My dashboard is not working properly, gas gauge not working, speedometer not working. The "battery saver activated" light comes on, car overheats, car makes high pitch noise. Alternator checked out fin...

See More Questions 23