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Problems for specific Pontiac Bonneville years:

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Repairpal verified 2002 Pontiac Bonneville problems

 

Verified for the Pontiac Bonneville

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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Verified for the Pontiac Bonneville

Failure of the crankshaft position sensorignition control module, or powertrain control module (PCM) may cause the Check Engine Light to illuminate.

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Verified for the Pontiac Bonneville

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

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Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

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The water pump may develop a coolant leak resulting in an engine overheating condition.

 

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Verified for the Pontiac Bonneville

The EGR tube may develop an engine vacuum leak causing the engine to run lean. The Check Engine Light may or may not illuminate.

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Verified for the Pontiac Bonneville

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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Verified for the Pontiac Bonneville

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.

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Verified for the Pontiac Bonneville

The rubber section of an automatic transmission cooler line may develop a fluid leak . In some cases the leaking section of hose can be replaced. In others, the complete cooler line must be replaced to correct this concern.

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Verified for the Pontiac Bonneville

The high pressure power steering hose will commonly leak fluid; it should be replaced.

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It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

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Verified for the Pontiac Bonneville

The front struts may show signs of wear, or be excessively bouncy ride at freeway speeds. This may begin to occur at around 75,000 miles.

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Verified for the Pontiac Bonneville

The fuel pump can fail causing the engine to stall and not restart. Our technicians highly recommend to replace your fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

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Verified for the Pontiac Bonneville

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.

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Verified for the 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.

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