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Chevrolet Monte Carlo Problems

Check Engine Light Due to Gas Cap Issue on Chevrolet Monte Carlo

Problem Description and Possible Solution

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

(7 people reported this problem)

Chevrolet Monte Carlo Vehicles With This Problem

RepairPal Verified
Average mileage: 115,000 (110,000–120,000)
3 model years affected: 1996, 1997, 2001
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Viewing 1-2 of 2 comments
If gas cap is not screwed back on tightly after getting gas, engine light comes on. After screwing on correctly and driving a while the light will go off. Can take a day or two for light to go off, unless a lot of driving is done.