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1999 Pontiac Grand Prix

Engine Stall Or No Start Condition

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The fuel pump may fail causing engine to stall and not restart.

27 Reports

High Pressure Power Steering Hose Can Leak Fluid

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

24 Reports

Intake Manifold Gasket May Leak Coolant or Engine Oil

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The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine  with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.

24 Reports

Stalling Due to Mass Air Flow or Crankshaft Position Sensor Failure

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The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.

16 Reports

Engine Overheating Due to Water Pump Leak

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

 

16 Reports

Intake Manifold Gasket May Leak Engine Oil

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The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue.

14 Reports

Serpentine Belt Tensioner Pulley May Wear Out

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The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.

 

14 Reports

Oil Pump Drive O-ring May Leak Oil From Rear of Engine

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An engine oil leak may develop from the rear of the engine. This is commonly caused by a failed oil pump drive o-ring seal. The leaking o-ring should be replaced to correct this concern.

11 Reports

Corrosion At Ignition Coil Towers

Verified for the Pontiac Grand Prix

Corrosion may develop at the connection between the ignition coil tower and spark plug wire resulting in an engine misfire. The Ignition coil and spark plug wire should both be replaced to correct this condition.

11 Reports

Transmission Fluid Leak From Cooler Line

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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.

10 Reports

Power Windows May Stop Working

Verified for the Pontiac Grand Prix

One or more power windows may stop working due to a failed window motor or switch. Proper diagnoses will be necessary to determine the exact cause.

9 Reports

Key Stuck in Ignition Lock Cylinder

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The automatic transmission shifter may fail, or a wire may break near the shifter causing the ignition key to become stuck in the ignition lock cylinder.

9 Reports

Corrosion on Battery Cable Ends

Verified for the Pontiac Grand Prix

Acid may leak from the battery at the cable connections, resulting in corrosion on the battery cable ends and in the battery tray. A Leaking battery should be replaced and the cables thoroughly cleaned or replaced if necessary.

9 Reports

Power Window Not Working Due to Failed Switch

Verified for the Pontiac Grand Prix

One or more of the power windows may stop working due to a failed window switch. Failed switches will require replacement.

5 Reports
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