2007 Buick Lucerne

2007 Buick Lucerne

The 2007 Buick Lucerne is a full-size sedan offered with a variety of engine and transmission options. The base engine is a 3.8L V6 producing 197 horsepower and 229 lb-ft of torque, paired with a four-speed automatic transmission. A 4.6L V8 producing 275 horsepower and 290 lb-ft of torque is also available, mated to a six-speed automatic transmission.

The Lucerne is praised for its spacious interior, comfortable ride, and powerful engines. However, it has received criticism for its poor fuel economy and outdated design.

Engine

3.8L V6

• Failed Intake Manifold Gaskets
  • Description/Symptoms: Coolant leaks, overheating, rough idle
  • Solution: Replace intake manifold gaskets
  • Estimated Cost to Fix: $600 - $1,000+
  • Recalls: 10V338000, 10V339000

4.6L V8

• VVT Solenoid Failure
  • Description/Symptoms: Reduced engine power, check engine light
  • Solution: Replace VVT solenoid
  • Estimated Cost to Fix: $400 - $600+
  • Recalls: None Found

Transmission

Four-Speed Automatic (3.8L V6)

• Delayed or Hard Shifting
  • Description/Symptoms: Transmission slipping, shuddering, or refusing to shift properly
  • Solution: Replace transmission fluid and filter, or rebuild/replace transmission
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

Six-Speed Automatic (4.6L V8)

• Overheating
  • Description/Symptoms: Transmission slipping, shuddering, or overheating
  • Solution: Replace torque converter or transmission cooler lines
  • Estimated Cost to Fix: $1,000 - $2,500+
  • Recalls: None Found

Suspension

• Strut Mount Failure
  • Description/Symptoms: Clunking noises, vibration, reduced ride quality
  • Solution: Replace strut mounts
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Battery dies prematurely, electrical system malfunctions
  • Solution: Test and replace faulty components, such as battery, alternator, or wiring harness
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: None Found
• Headlight Switch Failure
  • Description/Symptoms: Headlights do not turn on or off, flicker
  • Solution: Replace headlight switch
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Ignition Interlock Failure
  • Description/Symptoms: Key does not turn in the ignition, vehicle cannot start
  • Solution: Replace ignition interlock assembly
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• HVAC Blower Motor Failure
  • Description/Symptoms: No air flow from vents, blower motor noise
  • Solution: Replace blower motor
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Summary

The 2007 Buick Lucerne is a spacious and comfortable sedan with powerful engine options. However, it has faced some reliability issues, particularly with the engine and transmission. Issues range from minor to severe, with some requiring significant repairs. The cost of these repairs can vary widely depending on the issue and the extent of the damage. Overall, the Lucerne is not considered to be as reliable as some of its competitors.