1991 GMC V1500 Suburban

Introduction:

The 1991 GMC V1500 Suburban is a full-size SUV that was offered with a variety of engine and transmission options. The standard engine was a 5.7L V8 producing 210 horsepower and 300 lb-ft of torque. Other engine options included a 5.7L V8 with fuel injection producing 215 horsepower and 305 lb-ft of torque, and a 7.4L V8 producing 230 horsepower and 385 lb-ft of torque. Transmission options included a 4-speed automatic and a 5-speed manual.

The V1500 Suburban was praised for its spacious interior, powerful engines, and towing capacity. However, it was also criticized for its poor fuel economy and handling.

Engine

5.7L V8 (Carburetor)

• Intake manifold gasket failure
  • Description/Symptoms: Coolant or oil leaks, engine overheating
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• Valve cover gasket failure
  • Description/Symptoms: Oil leaks, engine noise
  • Solution: Replace valve cover gaskets
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

5.7L V8 (Fuel Injection)

• Throttle position sensor failure
  • Description/Symptoms: Engine stalling, poor acceleration
  • Solution: Replace throttle position sensor
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found
• Fuel injector failure
  • Description/Symptoms: Engine misfiring, poor fuel economy
  • Solution: Replace fuel injector(s)
  • Estimated Cost to Fix: $200 - $400+ per injector
  • Recalls: None Found

7.4L V8

• Head gasket failure
  • Description/Symptoms: Coolant leaks, engine overheating, white smoke from exhaust
  • Solution: Replace head gaskets
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found

Transmission

4-Speed Automatic

• Transmission slipping
  • Description/Symptoms: Difficulty shifting gears, loss of power
  • Solution: Overhaul or replace transmission
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

5-Speed Manual

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

Suspension

• Front ball joint failure
  • Description/Symptoms: Clunking or popping noises while turning or braking
  • Solution: Replace ball joints
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Rear leaf spring failure
  • Description/Symptoms: Sagging rear end, rough ride
  • Solution: Replace leaf springs
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found

Electrical

• Alternator failure
  • Description/Symptoms: Dimming lights, battery not charging
  • Solution: Replace alternator
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Starter failure
  • Description/Symptoms: Engine not starting, clicking sound when turning key
  • Solution: Replace starter
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Exterior

• Rust on body panels
  • Description/Symptoms: Rust spots or holes on exterior of vehicle
  • Solution: Repair or replace rusted panels
  • Estimated Cost to Fix: Varies depending on severity
  • Recalls: None Found

Interior

• Dashboard cracks
  • Description/Symptoms: Cracks in dashboard material
  • Solution: Replace dashboard
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• Power window failure
  • Description/Symptoms: Windows not working, stuck windows
  • Solution: Replace window motor or switch
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Summary:

The 1991 GMC V1500 Suburban is a capable and spacious SUV, but it has a number of potential issues that owners should be aware of. The most common engine problems include intake manifold gasket failure, valve cover gasket failure, and fuel injector failure. Transmission problems can also be a concern, with transmission slipping and clutch failure being the most common. Other potential issues include suspension problems, electrical problems, and interior problems. The severity and cost of these issues can vary depending on the specific issue and the condition of the vehicle.