2003 Pontiac Grand Prix - Reliability

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GTP Sedan (3.8L V6 Supercharger 4-speed Automatic)

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Reliability Rating for 2003 Pontiac Grand Prix by Identifix

Ratings Key

Minimal Problems

Moderate Problems

Significant Problems

	Rating	Comments
Engine		Common problems on this vehicle are the failure of the Upper Intake Manifold and Gaskets and Oil Pan Gasket (3.8L). Failure of the Upper Intake Manifold and Gaskets allow engine coolant to leak into the cylinders. Failure of the Oil Pan Gasket allows oil to leak from the engine. An occasional problem with this vehicle is failure of the Catalytic Converter (3.8L VIN K engine only). A failed Catalytic Converter may cause the Service Engine Soon Light (SES) to illuminate or cause a lack of power. The cost to repair the Upper Intake Manifold Gaskets on vehicles without a supercharger is estimated at $421.00 for parts and $247.00 for labor. The cost to repair the Upper Intake Manifold Gaskets on vehicles with a supercharger is estimated at $430.00 for parts and $260.00 for labor. The cost to repair the Oil Pan Gasket is estimated at $46.00 for parts and $117.00 for labor. The cost to replace the Catalytic Converter is estimated to be $462.72 for parts and 52.00 for labor. All prices are estimates based on $65.00 per flat rate hour and do not include diagnostic time or any applicable sales tax.
Transmission & Driveline
Steering & Suspension
Brake
Heating & Air Conditioning
Starting & Charging
Accessories
Overall		4 out of 5

Reliability Ratings displayed above reflect style specific standard features and may vary from aggregated values displayed for the same year in the historical model overviewed bellow.

Reliability History for Pontiac Grand Prix by Identifix

	2001	2002	2003	2004	2005
Engine
Transmission & Driveline
Steering & Suspension
Brake
Heating & Air Conditioning
Starting & Charging
Accessories
Overall

Reliability Ratings by Identifix is based from repair shop-reported issues. Though this data may be for years prior to model you are researching, it exposes how reliable this model platform has been historically.

2003 Pontiac Grand Prix - Reliability

Reliability Rating for 2003 Pontiac Grand Prix by Identifix

Reliability History for Pontiac Grand Prix by Identifix

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