2002 Cadillac DeVille

Introduction:

The 2002 Cadillac DeVille is a full-size luxury sedan known for its spacious interior, powerful engine, and smooth ride. It is available with two engine options: a 4.6L Northstar V8 and a 4.6L Northstar V8 VVT. Transmission options include a 4-speed automatic and a 5-speed automatic.

Engine

4.6L Northstar V8

• Northstar V8 Intake Manifold Gasket Failure:
  • Description/Symptoms: Coolant leaks, overheating, check engine light
  • Solution: Replace intake manifold gaskets
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Northstar V8 Head Gasket Failure:
  • Description/Symptoms: Coolant leaks, overheating, white smoke from exhaust
  • Solution: Replace head gaskets
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found

4.6L Northstar V8 VVT

• VVT Solenoid Failure:
  • Description/Symptoms: Reduced engine performance, increased fuel consumption
  • Solution: Replace VVT solenoids
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Intake Valve Sticking:
  • Description/Symptoms: Engine misfires, rough idle, loss of power
  • Solution: Replace carbon-covered intake valves
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found

Transmission

4-Speed Automatic

• Transmission Slipping:
  • Description/Symptoms: Difficulty shifting, delayed acceleration
  • Solution: Replace transmission or rebuild
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

5-Speed Automatic

• No Issues Found

Suspension

• Air Suspension Compressor Failure:
  • Description/Symptoms: Inability to adjust ride height, sagging vehicle
  • Solution: Replace air suspension compressor
  • Estimated Cost to Fix: $800 - $1,200+
  • Recalls: None Found
• Strut Mounts Worn:
  • Description/Symptoms: Noises when driving over bumps, vibrations
  • Solution: Replace strut mounts
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Electrical

• Battery Discharge:
  • Description/Symptoms: Battery drains quickly, difficulty starting
  • Solution: Check for parasitic drain, replace battery if needed
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found
• BCM Failure:
  • Description/Symptoms: Electrical issues, such as inoperable windows, lights, or gauges
  • Solution: Replace body control module
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Exterior

• Door Lock Actuator Failure:
  • Description/Symptoms: Difficulty locking or unlocking doors
  • Solution: Replace door lock actuators
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Interior

• Center Console Trim Peeling:
  • Description/Symptoms: Wood trim on center console peels or discolors
  • Solution: Replace center console trim
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found

Summary:

The 2002 Cadillac DeVille is a comfortable and capable luxury sedan, but it has its share of potential issues. The Northstar V8 engines are known for head gasket and intake manifold gasket failures, while the air suspension compressor can also be troublesome. Electrical problems and interior trim issues are also worth noting. The severity and cost of these issues vary, so it’s important to consider them before purchasing a used DeVille.