The answer to that question is TOTALLY different depending on which engine your Gran Prix is equipped with. The choices are:
> V6-3.8L VIN 2
> V8-5.3L VIN C
> V6-3.8L SC VIN 4
This is really must know information - especially if you are asking somebody for help with your engine, engine accessories, or engine control systems.
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It is a V6-3.8L VIN2
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