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Pontiac Grand Prix GTP Problems

Check Engine Light Due to Gas Cap Issue on Pontiac Grand Prix GTP

Problem Description and Possible Solution

A Loose or worn gas cap may cause Check Engine Light to illuminate.

(6 people reported this problem)

Pontiac Grand Prix GTP Vehicles With This Problem

RepairPal Verified
Average mileage: 130,000 (130,000–130,000)
2 model years affected: 2004, 2005
Not Your Pontiac Grand Prix GTP Problem?
Brake problem? Or maybe a faulty head gasket cylinder?
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