Check Engine Light Due to Gas Cap Issue on Saturn Relay

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

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Average mileage: 99,444 (36,000–172,000)
3 model years affected: 2005, 2006, 2007
15 people reported this problem
5 people shared problem details
2006 Saturn Relay97,000
check engine light is steady
2007 Saturn Relay85,000
Check engine light came on with Check Gas Cap alert. I noticed it came on when it reached 1/4. I would unscrew it and then tighten it again and light would go out. It doesn't always work.
2005 Saturn Relay172,000
check engine light comes on, stays on, then blinks
2005 Saturn Relay108,000
Actually a 2004 Vue, same problem. Guess Saturn issued a letter about being a know problem and will replace under 120,000miles/10 years
Check engine light due to gas cap issue
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