1991 GMC C1500

1991 GMC C1500

The 1991 GMC C1500 is a full-size pickup truck that was offered with a variety of engine and transmission options. The standard engine was a 4.3L V6, while the optional engines included a 5.0L V8 and a 5.7L V8. The C1500 was available with a 5-speed manual transmission or a 4-speed automatic transmission.

People who like the 1991 GMC C1500 appreciate its powerful engines, rugged design, and spacious interior. However, some owners have reported issues with the vehicle’s engine, transmission, suspension, electrical system, exterior, and interior.

Engine

4.3L V6

• Intake manifold gasket failure
  • Description/Symptoms: Coolant leaks, engine overheating, loss of power
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Head gasket failure
  • Description/Symptoms: Coolant leaks, engine overheating, loss of power
  • Solution: Replace head gasket
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

5.0L V8

• Intake manifold gasket failure
  • Description/Symptoms: Coolant leaks, engine overheating, loss of power
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Head gasket failure
  • Description/Symptoms: Coolant leaks, engine overheating, loss of power
  • Solution: Replace head gasket
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

5.7L V8

• Intake manifold gasket failure
  • Description/Symptoms: Coolant leaks, engine overheating, loss of power
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Head gasket failure
  • Description/Symptoms: Coolant leaks, engine overheating, loss of power
  • Solution: Replace head gasket
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Transmission

5-speed Manual Transmission

• Clutch failure
  • Description/Symptoms: Difficulty shifting gears, slipping gears, loss of power
  • Solution: Replace clutch
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

4-speed Automatic Transmission

• Transmission slipping
  • Description/Symptoms: Gears slipping, difficulty shifting, loss of power
  • Solution: Replace transmission
  • Estimated Cost to Fix: $2,000 - $3,000+
  • Recalls: None Found

Suspension

• Front suspension ball joints wear out
  • Description/Symptoms: Clunking or knocking noises from the front of the vehicle, uneven tire wear
  • Solution: Replace ball joints
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Rear suspension leaf springs break
  • Description/Symptoms: Sagging rear end, difficulty towing or carrying weight
  • Solution: Replace leaf springs
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found

Electrical

• Alternator failure
  • Description/Symptoms: Dimming lights, battery not charging, engine stalling
  • Solution: Replace alternator
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Starter failure
  • Description/Symptoms: Difficulty starting the engine, clicking or grinding noises
  • Solution: Replace starter
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Exterior

• Rust on body panels
  • Description/Symptoms: Reddish-brown stains on body panels, bubbling or flaking paint
  • Solution: Repair or replace rusted panels
  • Estimated Cost to Fix: Varies depending on extent of rust
  • Recalls: None Found
• Tailgate handle breaks
  • Description/Symptoms: Difficulty opening or closing tailgate
  • Solution: Replace tailgate handle
  • Estimated Cost to Fix: $50 - $100+
  • Recalls: None Found

Interior

• Dashboard cracks
  • Description/Symptoms: Cracks or splits in the dashboard
  • Solution: Replace dashboard
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Seat upholstery tears
  • Description/Symptoms: Rips or tears in the seat upholstery
  • Solution: Repair or replace seat upholstery
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Summary

The 1991 GMC C1500 is a reliable and versatile pickup truck, but it is not without its issues. The most common problems reported by owners include engine gasket failures, transmission slipping, suspension wear, electrical failures, and exterior rust. The severity and cost of these issues can vary depending on the severity of the problem and the age of the vehicle.