2003 Cadillac DeVille DTS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Cadillac DeVille DTS

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2003 Cadillac DeVille DTS Problems

Fuel Level Sensor Failure

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

Heating 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.

Steering Wheel Position Sensor May Fail

The steering wheel position sensor may fail, resulting in the service stability message being displayed.

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2003 Cadillac DeVille DTS Reviews

Hi I'm Donald and you can assume that I'm a mechanic. It's one of my greatest pains but best joys! I also own a 2003 Cadillac Deville with the 4.6 northstar Engine. I'm also an auto Mechanic! I just can't think of a better trade to have than one that allows you to test the limits with your northstar. When it breaks it's going to need LOTS of the best deserved attention and I DO GIVE my Devil...
Replaced 5 (twice on driver side) window regulators. Plastic parts on something used almost daily? Constant o2 codes. 80k miles. Drives great but too many repairs.
worst car I ever owned . Had many Cadillacs they lost my busness forever. repairs all the time. window motors all 4 many codes a.c. will not blow out of dash vents uses alot of oil 56,000 miles and falling apart

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