1999 Cadillac DeVille Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1999 Cadillac DeVille

1999 Cadillac DeVille Problems

High Pressure Power Steering Hose Can Leak Fluid

The high-pressure power steering lines are known to leak.

Car Won't Start Because of Anti-Theft System That Uses Raised-Chip Key

Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.

TCC 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.

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1999 Cadillac DeVille Questions

is it possible to rebuild alternator at home. (1 answer)

Engine overheating, (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 ...

Why is car not cranking? (1 answer)

1999 cadillac deville replaced fuel pump and still will not get power to tje pump also has theft. Light on

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1999 Cadillac DeVille Recalls

Cadillac 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.

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1999 Cadillac DeVille Reviews

I have a 99 cadillac deville that keeps getting hot even after changing the thermostat, water pump, fan relays(because fan wasnt coming on)and still it overheats. Any suggestions?
Need help with my husbands 99' Cadillac De Ville. He put too much weight on the back tires and now they have a "buzz sound" and don't drive straight. Our Haynes Repair Manual doesn't shows what kind of bushing he needs for the rear tire (right side). The Williamson Cadillac in Miami, send "lots of nuts" (will not solve the problem).
i have a 1999 Cadillac De Ville,its been a great care.bought it from auto action.ran good for abt 5 months then it ran hot, these cars have a problem with the head gasket bolts that cause it to leak and run hot.i put liquid copper in it abt 8.00.i know they say dont put stop leak in it but it works.stop the leak stopped it from running hot.and the check engine light went back off,and it runs go...

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