Check Engine Light Due to Gas Cap Issue on Saturn Outlook

Problem Description and Possible Solution

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

Problem Data
RepairPal Verified
Average mileage: 74,250 (45,000–100,000)
3 model years affected: 2007, 2008, 2009
8 people reported this problem
Viewing 1 - 4 of 4 problem details
Replaced gas cap with one from the dealer, light went out, but came back on a few days later. Went to dealer and had a module? in the gas tank replaced. Cost $500. Three months later, light on again and again it was something in the gas tank that had to be replaced. Cost $200
Check engine light came on...filled the tank up with gas, closed the gas cap and light turned off.
Not Fixed as of yet
Had the engine light checked and they said it is the gas cap.