Problems for specific Pontiac Grand Prix years:
Problem Reports
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2006 Pontiac Grand Prix Problems
Intake Manifold Gasket May Leak Coolant or Engine Oil
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.
High Pressure Power Steering Hose Can Leak Fluid
The high pressure power steering hose will commonly leak fluid; it should be replaced.
Engine Stall Or No Start Condition
The fuel pump may fail causing engine to stall and not restart.
Check Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
Stalling Due to Mass Air Flow or Crankshaft Position Sensor Failure
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.
Serpentine Belt Tensioner Pulley May Wear Out
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.
Intake Manifold Gasket May Leak Engine Oil
The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue.
Steering May Develop Clunk Noise From Upper Intermediate Steering Shaft
The steering may develop a clunk type noise from the upper intermediate steering shaft. Our technicians tell us that you should check with your local GM dealer to find out what the latest repair is for this condition.
Noise from front section of supercharger
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