1999 Cadillac DeVille Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1999 Cadillac DeVille
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1999 Cadillac DeVille ProblemsTCC Inop Due to Internal Transmission Fault
The torque converter clutch (TTC) may stop working due to an internal transmission failure. The Check Engine Light will illuminate if this occurs. Our technicians tell us the transmission will require dis-assembly to correct this concern.
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.
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.
1999 Cadillac DeVille Questionsis it possible to rebuild alternator at home. (1 answer)
Changed thermostat, 3 fan relays, coolant temp sensor, fans will still not come on. Ran a toggle to turn fans on and it still overheats when in traffic. If im going 50 mph or better temp stays at 199-206 degrees. Also when i first start it, it runs extremely rough for about 30 seconds once i rev ...
1999 cadillac deville replaced fuel pump and still will not get power to tje pump also has theft. Light on
1999 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.