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1998 Pontiac Bonneville Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1998 Pontiac Bonneville

1998 Pontiac Bonneville Problems

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

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1998 Pontiac Bonneville Recalls

ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 3800 V6 (L36) ENGINES AND CERTAIN DELPHI FUEL PRESSURE REGULATORS, THE REGULATORS HAVE A MUCH HIGHER THAN USUAL RATE OF FUEL LEAKS. A LEAK CAN ALLOW FUEL TO ENTER THE INTAKE MANIFOLD THROUGH A VACUUM LINE. IF THE ENGINE DOES NOT START WHEN CRANKED, T...

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1998 Pontiac Bonneville Reviews

The Bonneville has held together quite well. The intake may leak causing the engine not to run but after that is taken care of the engine performs quite well. If you like the looks, this may be the car for you.

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