The high pressure power steering hose will commonly leak fluid; it should be replaced.
Problems for specific Pontiac Grand Prix years:
Car problem reports
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Most reported 2007 Pontiac Grand Prix problems
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
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.
The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue.
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.