1991 Pontiac Grand Prix

1991 Pontiac Grand Prix

The 1991 Pontiac Grand Prix was a popular mid-size car known for its stylish design and comfortable interior. It was available with a range of engine and transmission options:

• 3.1L V6 (140 hp, 185 lb-ft torque) paired with a 4-speed automatic transmission
• 3.3L V6 (160 hp, 190 lb-ft torque) paired with a 4-speed automatic transmission
• 3.8L V6 (200 hp, 225 lb-ft torque) paired with a 4-speed automatic transmission

While the Grand Prix received praise for its handling and performance, it also faced several issues over the years.

Engine

• 3.1L V6
  • Intake Manifold Gasket Failure
    • Description/Symptoms: Coolant or oil leaks, engine overheating
    • Solution: Replace intake manifold gasket
    • Estimated Cost to Fix: $300 - $500
    • Recalls: None Found
  • Cylinder Head Warping
    • Description/Symptoms: Coolant leaks, loss of compression
    • Solution: Replace cylinder head
    • Estimated Cost to Fix: $1,000 - $1,500
    • Recalls: None Found
• 3.3L V6
  • Valve Cover Gasket Leak
    • Description/Symptoms: Oil leaks
    • Solution: Replace valve cover gasket
    • Estimated Cost to Fix: $100 - $200
    • Recalls: None Found
• 3.8L V6
  • Intake Manifold Failure
    • Description/Symptoms: Loss of power, rough idle
    • Solution: Replace intake manifold
    • Estimated Cost to Fix: $500 - $700
    • Recalls: None Found

Transmission

• 4-Speed Automatic
  • Transmission Slippage
    • Description/Symptoms: Transmission fails to engage gears properly
    • Solution: Rebuild or replace transmission
    • Estimated Cost to Fix: $1,500 - $2,500
    • Recalls: None Found

Suspension

• Front Struts
  • Strut Mount Failure
    • Description/Symptoms: Noises and vibrations from the front suspension
    • Solution: Replace strut mounts
    • Estimated Cost to Fix: $300 - $500
    • Recalls: None Found
• Rear Shock Absorbers
  • Leaking or Blown Shock Absorbers
    • Description/Symptoms: Poor handling, reduced ride comfort
    • Solution: Replace shock absorbers
    • Estimated Cost to Fix: $200 - $400
    • Recalls: None Found

Electrical

• Alternator Failure
  • Description/Symptoms: Battery not charging, electrical system malfunctions
  • Solution: Replace alternator
  • Estimated Cost to Fix: $500 - $700
  • Recalls: None Found
• Starter Failure
  • Description/Symptoms: Engine fails to start
  • Solution: Replace starter
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Exterior

• Taillight Lenses Cracking
  • Description/Symptoms: Moisture enters taillights, causing lenses to crack and fail
  • Solution: Replace taillight lenses
  • Estimated Cost to Fix: $150 - $250
  • Recalls: None Found

Interior

• Dashboard Cracking
  • Description/Symptoms: Dashboard surface cracks and deteriorates
  • Solution: Replace dashboard
  • Estimated Cost to Fix: $400 - $600
  • Recalls: None Found
• Power Window Failure
  • Description/Symptoms: Power windows get stuck or operate intermittently
  • Solution: Repair or replace window motor and components
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Summary

The 1991 Pontiac Grand Prix experienced a number of issues, particularly with the engine, transmission, and suspension. While some of these issues were relatively minor and inexpensive to fix, others could be more severe and costly. Potential buyers should be aware of these potential issues when considering purchasing this vehicle.