What are the most common Cadillac DeVille problems?

According to Au7o's analysis of 0+ owner reports, the 1994-2005 Cadillac DeVille has 5 documented issues. The most frequently reported are: Northstar 4.6L V8 Head Bolt/Head Gasket Failure, Northstar 4.6L Head Gasket Blown from Block Thread Failure, Northstar 4.6L Engine Oil Leak (Rear Main Seal and Crankcase). Of these, 2 are rated critical and should be addressed promptly.

Is the Cadillac DeVille reliable?

The 1994-2005 Cadillac DeVille has 5 known issues documented across 0+ owner reports. 2 issues are rated critical: Northstar 4.6L V8 Head Bolt/Head Gasket Failure and Northstar 4.6L Head Gasket Blown from Block Thread Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Cadillac DeVille problems?

Repair costs for known Cadillac DeVille issues range from $50 to $6,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Northstar 4.6L V8 Head Bolt/Head Gasket Failure, typically costs $3,000-$6,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year Cadillac DeVille is the most reliable?

Reliability varies across model years of the Cadillac DeVille. Based on owner reports, issues are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 1994-2005 Cadillac DeVille with 5 documented issues from 0+ owner reports.

Cadillac DeVille Problems: 5 Issues Every Owner Should Know

Cadillac DeVille Problems: 5 Issues Every Owner Should Know | Au7o

⚠️NHTSA Recalls8 recalls

ELECTRICAL SYSTEM:IGNITION

This defect can 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. General Motors LLC (GM) is recalling certain model year 2005-2009 Buick LaCrosse, 2006-2011 Buick Lucerne, 2000-2005 Cadillac DeVille, 2006-2011 Cadillac DTS, 2006-2014 Chevrolet Impala, and 2006-2007 Chevrolet Monte Carlo vehicles. In the affected vehicles, the weight on the key ring and road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.

Campaign #14V35500023/06/2014

FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

ON CERTAIN CADILLAC DEVILLE AND SEVILLE PASSENGER VEHICLES, FUNERAL COACHES, AND LIMOUSINES EQUIPPED WITH A V8 (4.6L) ENGINE, OLDSMOBILE AURORA PASSENGER VEHICLES EQUIPPED WITH A V8 (4.0L ) ENGINE, AND PONTIAC BONNEVILLE SSEI PASSENGER VEHICLES EQUIPPED WITH A SUPERCHARGED V6 (3.8L) ENGINE, THE FUEL TANK PRESSURE SENSORS ARE UNUSUALLY SUSCEPTIBLE TO MALFUNCTIONS. IF THE SENSOR MALFUNCTIONS, EXCESSIVE VACUUM CAN BE APPLIED DURING SELF-DIAGNOSTIC TESTING.

Campaign #03V23800001/07/2003

STEERING:GEAR BOX (OTHER THAN RACK AND PINION)

CERTAIN PASSENGER VEHICLES WERE BUILT WITH MISSING OR UNDER-TORQUED STEERING GEAR ATTACHMENT BOLTS. IF A BOLT IS MISSING, THE DRIVER MAY NOTICE UNEVEN STEERING RESPONSE OR UNUSUAL NOISES DURING TURNS.

Campaign #02V06700006/03/2002

SEAT BELTS:FRONT:RETRACTOR

CERTAIN PASSENGER VEHICLES CONTAIN DRIVER AND FRONT PASSENGER LAP AND/OR SHOULDER BELT RETRACTORS THAT MAY NOT REMAIN LOCKED UP AS DESIGNED DURING A CRASH IN WHICH THE BELT PRETENSIONERS DEPLOY.

Campaign #02V22700005/09/2002

SEAT BELTS:FRONT:BUCKLE ASSEMBLY

VEHICLE DESCRIPTION: PASSENGER VEHICLES, HEARSE, AND LIMOUSINES. SOME OF THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 209, "SEAT BELT ASSEMBLIES." THESE VEHICLES HAVE SEAT BELTS THAT MAY NOT MEET THE 30-POUND PUSH BUTTON RELEASE EFFORT REQUIREMENT OF THE STANDARD.

Campaign #00V34700030/10/2000

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Cadillac DeVille Problems: 5 Issues Every Owner Should Know

All 5 Known Issues

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Frequently Asked Questions

What are the most common Cadillac DeVille problems?

Is the Cadillac DeVille reliable?

How much does it cost to fix common Cadillac DeVille problems?

What year Cadillac DeVille is the most reliable?