Problem Description and Possible Solution
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
Average mileage: 106,408 (30,000–211,000)
34 people reported this problem
Check engine light stayed on for a few days, and my wife took vehicle to chevrolet dealer for service. The mechanic said there was a leak around the gas cap area and they fixed. I was charge for 1 hour labor plus tax.
Used diagnostic code reader, and it gave me the problem "evaporative system leak". Auto parts store said change the gas cap. Got new cap, problem solved