1991 Ford CLT9000

1991 Ford CLT9000

The 1991 Ford CLT9000 is a medium-duty truck offered with a range of engine and transmission options. It is known for its durability and reliability, but it is not without its issues. Some of the most common problems reported by owners include:

Engine

• 7.8L Power Stroke Diesel
  • Fuel Injector Failure: Premature failure of fuel injectors can lead to rough idling, reduced power, and increased emissions.
    • Solution: Replace failed fuel injectors.
    • Estimated Cost to Fix: $200 - $500+
    • Recalls: None Found
• 6.9L IDI Diesel
  • Cylinder Head Warping: Overheating can cause the cylinder head to warp, leading to coolant leaks, loss of compression, and engine damage.
    • Solution: Replace warped cylinder head.
    • Estimated Cost to Fix: $1,000 - $2,500+
    • Recalls: None Found

Transmission

• Allison MT643 Automatic
  • Torque Converter Lockup Failure: The torque converter lockup mechanism may fail, causing a loss of power and fuel economy.
    • Solution: Replace torque converter.
    • Estimated Cost to Fix: $1,500 - $2,500+
    • Recalls: None Found
• ZF S6-45 Manual
  • Syncro Ring Wear: Excessive wear on the synchronizer rings can make it difficult or impossible to shift gears.
    • Solution: Replace worn synchronizer rings.
    • Estimated Cost to Fix: $500 - $1,000+
    • Recalls: None Found

Suspension

• Front Leaf Spring Breakage: The front leaf springs can break, causing a loss of stability and handling. * Solution: Replace broken leaf springs. * Estimated Cost to Fix: $500 - $1,000+ * Recalls: None Found
• Rear Air Bag Suspension Leaks: The rear air bags can develop leaks, causing the truck to sag and reduce its payload capacity. * Solution: Replace leaking air bags. * Estimated Cost to Fix: $200 - $500+ * Recalls: None Found

Electrical

• Alternator Failure: Premature failure of the alternator can lead to electrical system issues and battery drain. * Solution: Replace failed alternator. * Estimated Cost to Fix: $500 - $1,000+ * Recalls: None Found
• Battery Corrosion: The battery terminals can corrode over time, leading to electrical problems. * Solution: Clean and protect battery terminals. * Estimated Cost to Fix: $100 - $200+ * Recalls: None Found

Exterior

• Rust: The body panels and frame can experience rust, especially in areas where the paint has chipped or been scratched. * Solution: Repair or replace rusted parts. * Estimated Cost to Fix: $500 - $2,000+ * Recalls: None Found

Interior

• Dashboard Cracks: The dashboard can develop cracks, especially in hot climates. * Solution: Replace cracked dashboard. * Estimated Cost to Fix: $200 - $500+ * Recalls: None Found
• HVAC Blower Motor Failure: The HVAC blower motor can fail, causing a loss of heating and cooling functions. * Solution: Replace failed blower motor. * Estimated Cost to Fix: $200 - $500+ * Recalls: None Found

Summary

The 1991 Ford CLT9000 is a generally reliable truck, but it is not immune to issues. Some of the most common problems reported by owners include fuel injector failure, cylinder head warping, torque converter lockup failure, and various suspension and electrical problems. The severity and cost of these issues vary depending on the specific problem and the extent of the damage. Regular maintenance and proper care can help to prevent or mitigate some of these issues.