1991 Buick LeSabre

1991 Buick LeSabre

The 1991 Buick LeSabre was a popular full-size sedan offered with a choice of two engines and two transmissions. The standard engine was a 3.8L V6 rated at 165 horsepower and 245 lb-ft of torque, paired with a 4-speed automatic transmission. The optional engine was a 5.0L V8 rated at 175 horsepower and 295 lb-ft of torque, paired with a 3-speed automatic transmission. The LeSabre was praised for its spacious interior, comfortable ride, and reliable performance, but it was criticized for its bland styling and lack of modern features.

Engine

3.8L V6

• Intake Manifold Gasket Failure
  • Description/Symptoms: Leaking coolant, overheating, rough idle
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $300 - $500
  • Recalls: None Found
• Oil Pan Gasket Leak
  • Description/Symptoms: Leaking oil, visible on underside of vehicle
  • Solution: Replace oil pan gasket
  • Estimated Cost to Fix: $100 - $200
  • Recalls: None Found

5.0L V8

• Valve Cover Gasket Leak
  • Description/Symptoms: Leaking oil, visible on top of engine
  • Solution: Replace valve cover gaskets
  • Estimated Cost to Fix: $200 - $300
  • Recalls: None Found

Transmission

4-Speed Automatic

• Slipping Gears
  • Description/Symptoms: Transmission slips out of gear, especially under load
  • Solution: Overhaul or replace transmission
  • Estimated Cost to Fix: $1,500 - $3,000
  • Recalls: None Found

3-Speed Automatic

• No Issues Found

Suspension

• Front Lower Control Arm Bushing Failure
  • Description/Symptoms: Suspension becomes loose, popping or creaking noises from front end
  • Solution: Replace lower control arm bushings
  • Estimated Cost to Fix: $200 - $300
  • Recalls: None Found
• Rear Shock Absorber Mount Failure
  • Description/Symptoms: Rear suspension becomes bouncy or sloppy, excessive tire wear
  • Solution: Replace rear shock absorber mounts
  • Estimated Cost to Fix: $300 - $500
  • Recalls: None Found

Electrical

• Cruise Control Module Failure
  • Description/Symptoms: Cruise control doesn’t work, “cruise” light on dash flashes
  • Solution: Replace cruise control module
  • Estimated Cost to Fix: $200 - $300
  • Recalls: None Found
• Power Window Motor Failure
  • Description/Symptoms: Power windows don’t work, buzzing or clicking noise when operating
  • Solution: Replace power window motor
  • Estimated Cost to Fix: $150 - $250 per window
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Dashboard Gauge Cluster Failure
  • Description/Symptoms: Gauges stop working or display incorrect readings
  • Solution: Replace dashboard gauge cluster
  • Estimated Cost to Fix: $300 - $500
  • Recalls: None Found
• Seat Recliner Failure
  • Description/Symptoms: Driver’s seat doesn’t recline or becomes stuck
  • Solution: Replace seat recliner mechanism
  • Estimated Cost to Fix: $100 - $200
  • Recalls: None Found

Summary

The 1991 Buick LeSabre is a generally reliable vehicle with some common issues to be aware of. Engine and transmission problems can be expensive to fix, while suspension and electrical issues tend to be less costly. Overall, the LeSabre’s issues are not severe and can often be addressed with preventive maintenance and regular repairs.