1991 Ford LNT8000F

1991 Ford LNT8000F

The 1991 Ford LNT8000F is a medium-duty truck that was popular for its durability and reliability. It was available with several different engine and transmission options, including:

• 7.3L Powerstroke Diesel V8 (311 hp/565 lb-ft)
• 5-speed manual transmission
• 6-speed automatic transmission

People who own the 1991 Ford LNT8000F generally like its power and towing capacity but dislike its lack of modern features and poor fuel economy.

Engine

7.3L Powerstroke Diesel V8

• Blown Head
  • Description/Symptoms: Loss of power, white smoke from exhaust, coolant in oil
  • Solution: Replace head gasket
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Turbocharger Failure
  • Description/Symptoms: Loss of boost, black smoke from exhaust, engine overheating
  • Solution: Replace turbocharger
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found
• Injector Failure
  • Description/Symptoms: Rough idle, loss of power, increased fuel consumption
  • Solution: Replace injector(s)
  • Estimated Cost to Fix: $200 - $400 per injector
  • Recalls: None Found

Transmission

5-Speed Manual Transmission

• Grinding Gears
  • Description/Symptoms: Difficult or noisy gear changes
  • Solution: Replace or rebuild transmission
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found
• Slipping Gears
  • Description/Symptoms: Gears slipping out of place while driving
  • Solution: Replace or rebuild transmission
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found

6-Speed Automatic Transmission

• No Issues Found

Suspension

• Leaf Spring Failure
  • Description/Symptoms: Broken or sagging leaf springs
  • Solution: Replace leaf springs
  • Estimated Cost to Fix: $400 - $600+
  • Recalls: None Found
• Shocks/Struts Leaking
  • Description/Symptoms: Noisy or bouncy ride, reduced handling
  • Solution: Replace shocks/struts
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Electrical

• Alternator Failure
  • Description/Symptoms: Battery not charging, dim headlights, electrical system failure
  • Solution: Replace alternator
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Starter Failure
  • Description/Symptoms: Engine cranks slowly or not at all
  • Solution: Replace starter
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Wiring Harness Issues
  • Description/Symptoms: Electrical shorts, intermittent electrical problems
  • Solution: Repair or replace wiring harness
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Exterior

• Rust/Corrosion
  • Description/Symptoms: Rust on body panels, frame, etc.
  • Solution: Repair or replace affected parts
  • Estimated Cost to Fix: Varies depending on severity
  • Recalls: None Found

Interior

• Dashboard Cracking
  • Description/Symptoms: Cracks in the dashboard material
  • Solution: Replace dashboard or cover cracks
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Seat Cushions Wearing Out
  • Description/Symptoms: Worn or collapsed seat cushions
  • Solution: Replace seat cushions
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found

Summary

The 1991 Ford LNT8000F is a reliable and powerful truck that has some common issues to watch out for. The most severe and expensive issues are related to the engine, such as blown head gaskets or turbocharger failure. However, these issues are relatively rare. Overall, the LNT8000F is a good choice for those who need a durable and reliable truck for work or recreation.