2005 Cadillac DeVille Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2005 Cadillac DeVille

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2005 Cadillac DeVille Problems

Power Window Regulators may Fail

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.

Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator

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.

Engine Overheating Due to Leaking Headgasket

Overheating of the engine may cause the cylinder head to expand, severely straining the head bolts and damaging the threads in the engine block. This commonly results in a blown head gasket. Our technicians tell us the engine block threads must be repaired before the cylinder head is reinstalled.

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2005 Cadillac DeVille Questions

How to replace front air bag sensor. Can not find where to unbolt (1 answer)

Do not see how it comes off. Has star bit bottom and some strange thing on the other side

Should I change the radiator fluid? It's a 2005 DeV with 40k miles? (1 answer)

It has the 100k fluid.

I replaced the speed sensor after a po502 fault. Car now has same ploblems (1 answer)

Now transmission is eratic again plus a/c is acting up plus I have po502 and po503 now. It ran good for a week. The a/c blows hot out.of the drivers side and the transmission completely gives up and slips into neutral while you have it in drive. The outside temp. Seem to have something to do with...

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2005 Cadillac DeVille Recalls

Ignition Lock Cylinder Concern

Excess weight on the key ring can cause the ignition switch to move out of the run position without warning, turning off the engine. This defect can also affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. Dealers will install two 13mm key rings and key insert into the vehicle's ignition keys to correct this concern.

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2005 Cadillac DeVille Reviews

I have for this car 5 years the car had 5500 miles on it when I first bought it. A little grandma owned this vehicle. The car sat for a long time, never was used that often. I paid $12,000 For this car, the car was like brand-new. she paid $46,000 dollars for it new. The only thing I put into it was a new battery. The battery in the car at the time was five years old, did not want to take a c...
i have a 2005 deville with over 221,000 miles. we bought this car new and i have to say it has been well worth the money. i've never had any major issues with this car. i've had routine maintenance done, such as brakes and such, and we change the oil every 3-5000 miles and had the transmission flushed about every 60-80,000 miles. i use synthetic oil and swear by this oil. i've had to replace th...
I have a 2005 that I've driven for 167k miles with nothing more than brakes and tires to be changed. I change the oil about every 4k and mainly run on highways with the cruise control. Best car that I've owned.

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