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 1997 Pontiac Bonneville
1997 Pontiac Bonneville
1997 Pontiac Bonneville Problems
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.
The water pump may develop a coolant leak resulting in an engine overheating 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.
1997 Pontiac Bonneville Recalls (Recent)
1997 Pontiac Bonneville Questions and Answers
it has been determined the computer does not turn on fuel pump. what would cause
I have a slight sputtering when I first take off ,I first though bad gas and so I put better gas in it an it seemed to help some but still sputters just enough to aggrivate.At speeds of 25mph it se...
i had a freind mech plug in to check the codes cause the air bag light stays on att.he said the the control mod was dead it did not respond when he pluged is his snap on code computer.so i bought a...
My heater works. . .sometimes. When it doesn't, which is usually anytime the outside temp is below 42 degrees, it won't blow at all. It did this same thing last winter, but would come on...