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
5 people shared problem details
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 STS48,000Visitor
Same as reported not repaired yet
2001 Cadillac Seville STS110,000Visitor
rough unsteady cold idle then code replaced
2003 Cadillac Seville STS50,000Visitor
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
I have 2 1999 Cadillac STS models and both of them leak water into the trunk when it rains. Sin...
One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail,...
I replaced the fuel pump when it failed. Car drove fine after that, however, the gas gauge stil...
How much does a transmission pump cost for this car.