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.
Resources for the Repair and Maintenance of your 2004 Pontiac Bonneville
2004 Pontiac Bonneville
2004 Pontiac Bonneville Problems
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.
The water pump may develop a coolant leak resulting in an engine overheating condition.
The steering may develop a clunk type noise from the upper intermediate steering shaft. Our technicians tell us that you should check with you local GM dealer to find out what the latest repair is for this condition.
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 Pontiac Bonneville Questions and Answers
what causes my heater/def to operate erratically
How difficult is it to remove and replace the front passenger side seat belt.
My seat belt will not always pull out. If I play with it, it my pull out. What could be causing this.
The power door lock switches on both the driver and passenger doors does not unlock the doors but will lock them. The doors will unlock with keyless entry, central door unlocking, and when the car ...