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2003 Pontiac Grand Prix GTP Repair and Maintenance Costs

A guide to repairs, service, and maintenance costs for your 2003 Pontiac Grand Prix GTP

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The fuel pump may fail causing engine to stall and not restart.
The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue. RepairPal cannot confirm a recall for this concern on these models.
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.