2003 Cadillac Seville STS Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Cadillac Seville STS
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2003 Cadillac Seville STS ProblemsCheck Engine Light on Due to Failure of Secondary Air Injection Pump
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.
A Loose or worn gas cap may cause Check Engine Light to illuminate.
An ignition coil may fail causing one of the cylinders to misfire. Each of the two banks of cylinders has its own coil assembly. If one ignition coil fails the coil assembly for the corresponding cylinder bank must be replaced.
2003 Cadillac Seville STS Questionsi need a windshield replacement and alternator replacement how much would that cost? (2 answers)
Im getting camshaft codes and misfire codes I already replaced one sensor how can I find out what else is causing the misfire
It was working when I parked it in the garage. One week later when I started it the guage went to full, then went to empty. I filled the tank that day and it remained on empty.