1991 Chevrolet G10

Introduction:

The 1991 Chevrolet G10 is a full-size van available with a choice of two engines and two transmission options. The 4.3L V6 produces 160 horsepower and 230 lb-ft of torque, while the 5.7L V8 delivers 210 horsepower and 300 lb-ft of torque. Customers appreciate the G10’s spacious interior, versatile seating arrangements, and strong engines. However, there are some common issues that owners may encounter.

Engine

4.3L V6

• Intake Manifold Gasket Failure:
  • Description/Symptoms: Coolant and/or oil leaks, overheating, reduced engine performance
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $500 - $800+
  • Recalls: None Found
• Distributor Cap and Rotor Failure:
  • Description/Symptoms: Engine misfires, hard starts, reduced fuel efficiency
  • Solution: Replace distributor cap and rotor
  • Estimated Cost to Fix: $100 - $200
  • Recalls: None Found

5.7L V8

• Fuel Injector Failure:
  • Description/Symptoms: Engine misfires, rough idle, reduced power
  • Solution: Replace fuel injector(s)
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• Intake Manifold Gasket Failure:
  • Description/Symptoms: Similar to 4.3L V6 issue
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $500 - $800+
  • Recalls: None Found

Transmission

4-Speed Automatic (4L60)

• Transmission Slippage:
  • Description/Symptoms: Transmission slipping between gears, delayed engagement, loss of power
  • Solution: Overhaul or replace transmission
  • Estimated Cost to Fix: $2,000 - $3,500+
  • Recalls: None Found

Suspension

• Front Ball Joint Failure:
  • Description/Symptoms: Clunking sounds, wandering steering, uneven tire wear
  • Solution: Replace ball joints
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Rear Leaf Spring Failure:
  • Description/Symptoms: Sagging rear end, reduced handling, rough ride
  • Solution: Replace leaf springs
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Electrical

• Alternator Failure:
  • Description/Symptoms: Dimming lights, stalling, battery discharge
  • Solution: Replace alternator
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Battery Terminal Corrosion:
  • Description/Symptoms: Difficult starting, flickering lights, electrical malfunctions
  • Solution: Clean and tighten battery terminals
  • Estimated Cost to Fix: Minimal, DIY fix
  • Recalls: None Found

Exterior

• Door Panel Rust:
  • Description/Symptoms: Rust spots forming on door panels
  • Solution: Replace door panels or repair with rust treatment
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found
• Fog Light Failure:
  • Description/Symptoms: Fog lights not functioning
  • Solution: Replace fog light bulb or assembly
  • Estimated Cost to Fix: $50 - $150
  • Recalls: None Found

Interior

• Dashboard Cracking:
  • Description/Symptoms: Cracks developing on the dashboard
  • Solution: Cover dashboard with a dash mat or replace dashboard
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Door Lock Failure:
  • Description/Symptoms: Doors not locking or unlocking correctly
  • Solution: Repair or replace door lock actuator
  • Estimated Cost to Fix: $150 - $250
  • Recalls: None Found

Summary:

The 1991 Chevrolet G10 has a few common issues that can impact its reliability and safety. Engine and transmission problems, such as intake manifold gasket failure and transmission slippage, can be expensive to repair. Suspension issues, including ball joint failure and leaf spring failure, can affect handling and safety. While some electrical and interior issues are relatively minor, exterior corrosion can be a more serious concern. Potential buyers and owners should consider these issues before making a purchase or performing maintenance on a G10.