Grand Am

Check Engine Light Due to Gas Cap Issue on Pontiac Grand Am

Problem Description and Possible Solution

Illumination of the Check Engine Light may be the result of a loose or worn gas cap.

Problem Data
RepairPal Verified
Average mileage: 110,787 (30,000–177,009)
10 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002, 2003, 2004, 2005
50 people reported this problem
Viewing 1 - 15 of 15 comments
Had the check engine light come on and everything was okay with engine- read manual and it said it could come on because of the cap not sealing correctly. Bought a replacement and the light turned off after about 50 miles.
had to have the gas cap replaced numerous times was told if it had with the engine light to turn car off then restart it again