Water may be drawn into the secondary air injection (AIR) pump causing the pump to fail and the Check Engine Light to illuminate. Our technicians tell us there is a kit available from General Motors to relocate the air intake for the pump which should prevent future damage from water intrusion.
Check Engine Light on Due to Failure of Secondary Air Injection Pump on Cadillac Seville STS
Average mileage: 63,333 (43,000–110,000)
10 people reported this problem
i hate this car. secondary pump failure, what a mess! very expensive to repair. car "LOOKS" great. it sucks! what can i do
2000 Cadillac Seville STS 48,000 mi, Visitor
Same as reported not repaired yet
2001 Cadillac Seville STS 110,000 mi, Visitor
rough unsteady cold idle then code replaced
2003 Cadillac Seville STS 50,000 mi, Visitor
Dealer found. 600.00 to replace. Second failure at 98,000. Not a happy camper.
Shop installed new pump indicated air intake reposistioned on the new pump to minimize chance of water intake