1991 Ford F59

Introduction:

The 1991 Ford F59 is a heavy-duty pickup truck offered with a choice of powerful engine and transmission configurations. It features a 7.5L V8 gasoline engine that delivers 230 horsepower and 360 lb-ft of torque, paired with an automatic transmission. The F59 is known for its ruggedness, hauling capabilities, and customization options. However, it has faced some specific issues over the years.

Engine

• 7.5L V8 Gasoline Engine
  • Intake Manifold Gasket Failure:
    • Description/Symptoms: Intake manifold gasket deteriorates over time, causing coolant and/or oil leaks, rough idling, and reduced power.
    • Solution: Replace intake manifold gasket and clean throttle body.
    • Estimated Cost to Fix: $600 - $900
    • Recalls: None Found
  • EGR Valve Problems:
    • Description/Symptoms: EGR valve can stick or fail, causing increased emissions, rough idling, and decreased fuel economy.
    • Solution: Clean or replace EGR valve.
    • Estimated Cost to Fix: $100 - $300
    • Recalls: None Found

Transmission

• 4-Speed Automatic Transmission
  • Transmission Slipping:
    • Description/Symptoms: Transmission gears may slip or hesitate during gear changes, causing acceleration issues and possible loss of power.
    • Solution: Rebuilt or replace transmission.
    • Estimated Cost to Fix: $1,500 - $2,500+
    • Recalls: None Found

Suspension

• Leaf Spring Sag:
  • Description/Symptoms: Leaf springs become weak over time, causing the rear of the truck to sag, affecting ride quality and handling.
  • Solution: Replace or reinforce leaf springs.
  • Estimated Cost to Fix: $500 - $1,000
    • Recalls: None Found

Electrical

• Alternator Failure:
  • Description/Symptoms: Alternator may fail, causing electrical system malfunction, battery drain, and vehicle stalling.
  • Solution: Replace alternator.
  • Estimated Cost to Fix: $400 - $600
    • Recalls: None Found

Exterior

• Rust Formation on Frame:
  • Description/Symptoms: Frames of F59s can be prone to rust and corrosion, especially in areas where road salt is used.
  • Solution: Treat rust with rust remover and apply protective coatings.
  • Estimated Cost to Fix: Varies depending on severity
    • Recalls: None Found

Interior

• Plastic Dash Cracking:
  • Description/Symptoms: Plastic dashboard may develop cracks over time, especially in areas exposed to sunlight.
  • Solution: Replace or repair dashboard.
  • Estimated Cost to Fix: $500 - $1,000
    • Recalls: None Found

Summary:

The 1991 Ford F59 is a robust truck, but it has faced some issues with its engine, transmission, suspension, electrical, exterior, and interior components. The severity and cost of these issues vary, but some repairs can be expensive, such as transmission rebuilding and frame rust treatment. Potential buyers should be aware of these potential problems before purchasing a used F59.