1993 Pontiac Bonneville Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1993 Pontiac Bonneville

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

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.

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VEHICLE DESCRIPTION: PASSENGER VEHICLES MANUFACTURED FROM AUGUST 1991 THROUGH JULY 1995. THE TRANSMISSION OIL COOLER LINE CAN SEPARATE WHEN THE VEHICLE IS OPERATED IN LOW TEMPERATURES IN COMBINATION WITH HIGH TRANSMISSION LOADS.

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I bought this car last october with 170 on it havent had but minor issues mainly with wheel hub and bearings. Brakes are a bit weird. But in all its a beautiful car. Reliable and roomy. I believe that it was maintained well by previouse owner. no real signs of excissive wear on interior or exterior. No one believes its a 93. Alot of the issues I am facing come with high milage. Some say I shoul...

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