Check Engine Light Due to Gas Cap Issue on Oldsmobile Cutlass

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

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Average mileage: 77,600 (77,600–77,600)
3 model years affected: 1997, 1998, 1999
6 people reported this problem
1 person shared problem details
Check engine light comes on. I have a device that reads the computer code. It tells me to replace the gas cap. I have done so three times. Problem keeps returning. My problem is that I have trouble filling up my gas tank. It's like I have a vapor lock in the tank. The gas pump keeps clicking off after only a quarter of a gallon of gas is put in. Takes me about 10 minutes to fill my tank when this problem occurs.
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