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Problems for specific Pontiac Bonneville years:

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Repairpal verified 1991 Pontiac Bonneville problems

 

Verified for the Pontiac Bonneville

The steering rack may fail causing a loss of power steering fluid as a result the steering may become hard to turn.

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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.

47 Reports
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Verified for the Pontiac Bonneville

The outer tie rod ends on the steering linkage may wear causing excessive free play in the steering and uneven tire wear. If the worn tie rod ends are replaced, the wheel alignment should be checked and adjusted as necessary.

12 Reports
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Verified for the Pontiac Bonneville

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

 

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Verified for the Pontiac Bonneville

The cam sensor interrupter (magnet) may become demagnetized and/or fall off of the camshaft gear causing the Check Engine Light (Service Engine Soon) light to illuminate. On higher mileage vehicles it would be advisable to replace the timing chain and gears if this problem were to occur as the timing cover must be removed to replace the interrupter.

7 Reports
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Verified for the Pontiac Bonneville

The ABS master cylinder assembly may fail internally causing the ABS light to illuminate.

4 Reports
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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.

19 Reports
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Verified for the Pontiac Bonneville

Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.

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Verified for the Pontiac Bonneville

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

21 Reports
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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.

21 Reports
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Verified for the Pontiac Bonneville

A door window may move slowly or stop in mid travel due to a failing power window motor. The affected window may start working again after the motor cools off. Replacing the faulty window motor will commonly correct this concern.

9 Reports
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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.

56 Reports
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Verified for the Pontiac Bonneville

The anti-lock brake (ABS) accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard.)

2 Reports
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Verified for the Pontiac Bonneville

If the ABS light on the instrument panel illuminates, our technicians recommend checking the brake lamps first. It could indicate that a brake light is not working or has burned out.

6 Reports
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