1991 Cadillac DeVille

Introduction:

The 1991 Cadillac DeVille was a luxurious and spacious sedan that offered a refined driving experience. It was available with a range of engine and transmission options, including a 4.5L V8 with a 4-speed automatic transmission and a 4.9L V8 with a 4-speed automatic transmission. People appreciated its comfortable interior, smooth ride, and powerful engine. However, it was criticized for its high fuel consumption and lack of modern features compared to some competitors.

Engine

4.5L V8

• Intake Manifold Gasket Failure:
  • Description/Symptoms: Leaking coolant, poor engine performance, rough idle
  • Solution: Replace intake manifold gaskets
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Head Gasket Failure:
  • Description/Symptoms: Mixing of coolant and oil, white smoke from exhaust, overheating
  • Solution: Replace head gaskets
  • Estimated Cost to Fix: $1,500 - $2,000+
  • Recalls: None Found

4.9L V8

• Valve Cover Gasket Leak:
  • Description/Symptoms: Oil leaking from valve covers, burning smell in engine compartment
  • Solution: Replace valve cover gaskets
  • Estimated Cost to Fix: $200 - $300
  • Recalls: None Found
• Cam Chain Tensioner Failure:
  • Description/Symptoms: Timing issues, engine noise, reduced power
  • Solution: Replace cam chain tensioner
  • Estimated Cost to Fix: $400 - $600
  • Recalls: None Found

Transmission

4-Speed Automatic Transmission

• Shifting Problems:
  • Description/Symptoms: Delayed shifts, hard shifts, slipping gears
  • Solution: Adjust or replace shift solenoids, perform transmission fluid and filter service
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Transmission Fluid Leaks:
  • Description/Symptoms: Leaks from transmission pan or seals, low transmission fluid level
  • Solution: Replace seals or pan, top up transmission fluid
  • Estimated Cost to Fix: $100 - $300
  • Recalls: None Found

Suspension

• Worn Front Control Arms and Ball Joints:
  • Description/Symptoms: Noises and vibrations during suspension movement, uneven tire wear
  • Solution: Replace control arms and ball joints
  • Estimated Cost to Fix: $400 - $600+
  • Recalls: None Found
• Rear Axle Seal Leak:
  • Description/Symptoms: Oil leaking from rear axle, visible on wheels or undercarriage
  • Solution: Replace axle seal
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Electrical

• Battery Problems:
  • Description/Symptoms: Dead battery, difficulty starting vehicle
  • Solution: Replace battery, check charging system
  • Estimated Cost to Fix: $100 - $200
  • Recalls: None Found
• Alternator Failure:
  • Description/Symptoms: Dimming lights, electrical system malfunctions
  • Solution: Replace alternator
  • Estimated Cost to Fix: $300 - $500
  • Recalls: None Found

Exterior

• Door Lock Problems:
  • Description/Symptoms: Difficulty locking or unlocking doors, broken door lock actuator
  • Solution: Replace door lock actuator
  • Estimated Cost to Fix: $200 - $300
  • Recalls: None Found
• Headlight Switch Failure:
  • Description/Symptoms: Headlights not turning on or flickering
  • Solution: Replace headlight switch
  • Estimated Cost to Fix: $100 - $200
  • Recalls: None Found

Interior

• Climate Control Malfunction:
  • Description/Symptoms: Blowing cold air when set to heat, not regulating temperature
  • Solution: Replace blend door actuator or other climate control components
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Cruise Control Problems:
  • Description/Symptoms: Cruise control not engaging or disengaging
  • Solution: Replace cruise control switch or other components
  • Estimated Cost to Fix: $100 - $200
  • Recalls: None Found

Summary:

The 1991 Cadillac DeVille had a range of issues, varying in severity and cost. Engine problems, such as intake manifold gasket failure and valve cover gasket leaks, were fairly common. Transmission issues, including shifting problems and fluid leaks, could also be encountered. Suspension components, like control arms and ball joints, were prone to wear. Electrical problems, such as battery failures and alternator issues, were also reported. Exterior and interior issues were less severe but could still affect the overall driving experience. Overall, while the DeVille offered a comfortable and luxurious ride, it did have some notable mechanical issues that could be costly to repair.