Cadillac DeVille DTS Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Cadillac DeVille DTS
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Cadillac DeVille DTS ProblemsHeating and AC Temperature and Air Delivery Mode Door Actuators May Fail
One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.
The steering wheel position sensor may fail, resulting in the service stability message being displayed.
The water pump and/or the plastic side tanks on the radiator may leak causing a loss of coolant. The engine may overheat due to coolant loss. Continued coolant loss after external leaks have been repaired could indicate a blown head gasket.
Cadillac DeVille DTS Questionswhy am I replacing motor mounts front and rear (3 answers)
twice in the last year
All the relays are good and none of the fuses are blown but yet I can start the car with a toggle switch that I installed at the relay