1998 Cadillac DeVille Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1998 Cadillac DeVille
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1998 Cadillac DeVille ProblemsHeating and AC Temperature and Air Delivery Mode Door Actuators May Fail
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.
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.
One or more of the power window regulators (one in each door) may fail causing the window to fall into the door and not roll up.
1998 Cadillac DeVille QuestionsWhy does my AC sometimes blow through the defrost vent (1 answer)
Hood first from the front passenger then something leaked from under dash board someone said heat core not sure I ask repair before on another vehicle would like to ask your advice again thank you
What does this mean, how do I fix it and what does it cost
1998 Cadillac DeVille RecallsCadillac Recalls 1998-1999 DeVilles Due to Unintended Deployment of Side Impact Air Bag
Cadillac has recalled 1998-1999 DeVille vehicles because the side impact air bag sensors may be faulty. This could result in unintended deployment of the side impact air bags, which may injure passengers. Dealers will replace both side impact sensing modules.
Cadillac has recalled 1998 DeVille vehicles because the hinge pivot bolts may not have been heat treated properly and may fail. In the event of an accident, the hood may push back through the windshield glass, which may injure the occupants. Dealers will replace the hood hinge pivot bolts.
Cadillac has recalled 1998 Devillle and Eldorado vehicles because the purge evaporate emissions wiring harness was improperly routed. This could interfere with the speed control and throttle linkage, and may cause the throttle to stay open. Dealers will inspect the harness for proper routing and then install a tie strap to the harness.