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Cadillac Seville STS Problems

Check Engine Light Due to EGR Control Solenoid/Valve Failure on Cadillac Seville STS

Problem Description and Possible Solution

The EGR control solenoid or EGR valve may fail causing the Check Engine Light to illuminate.

(4 people reported this problem)

Cadillac Seville STS Vehicles With This Problem

RepairPal Fair Price Estimate
$175-$378
RepairPal Verified
Average mileage: 81,000 (81,000–81,000)
3 model years affected: 1990, 1991, 1992
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Brake problem? Or maybe a faulty head gasket cylinder?
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