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Cadillac Seville STS Problems

Check Engine Light Due to Gas Cap Issue on Cadillac Seville STS

Problem Description and Possible Solution

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

(17 people reported this problem)

Cadillac Seville STS Vehicles With This Problem

RepairPal Verified
Average mileage: 125,549 (42,000–233,000)
8 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002, 2003
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Brake problem? Or maybe a faulty head gasket cylinder?
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