Car Problem Reports

Cadillac Seville SLS Check Engine Light Due to Gas Cap Issue

Cadillac Seville SLS Problem
13 Reports
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Model Years Affected: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004

Average Mileage: 108,666 mi (68,000 mi - 143,000 mi)


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

  • Visitor, , 115,000 mi

    Was getting a check gas cap message ans subsequent check engine light, Applied some Vaseline to the oring on the gas cap works for a short time, but a new cap is needed to fix.

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  • Visitor, , 68,000 mi

    Check Engine light came on, fuel leak detected, check gas cap came on around a week later, changed and services engine soon turned off.

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