1991 Ford F700

1991 Ford F700

The 1991 Ford F700 is a heavy-duty pickup truck that was available with a variety of engine and transmission options. The gasoline engine options included a 4.9L I6, a 5.8L V8, and a 7.5L V8. The diesel engine options included a 7.3L IDI V8 and a 7.3L DI V8. Transmission options included a 4-speed manual, a 5-speed manual, and a 4-speed automatic.

People who like the 1991 Ford F700 appreciate its powerful engines, rugged construction, and spacious interior. However, the vehicle is also known for its high fuel consumption and lack of modern features.

Engine

• 4.9L I6
  • Blown head gasket: Symptoms include white smoke from the exhaust, overheating, and loss of coolant. Solution: Replace the head gasket and cylinder heads. Estimated Cost to Fix: $1,000 - $2,000+
  • Intake manifold gasket failure: Symptoms include coolant leaks, rough idling, and reduced engine power. Solution: Replace the intake manifold gasket. Estimated Cost to Fix: $500 - $1,000
• 5.8L V8
  • Intake manifold gasket failure: Symptoms include coolant leaks, rough idling, and reduced engine power. Solution: Replace the intake manifold gasket. Estimated Cost to Fix: $500 - $1,000
  • Spark plug fouling: Symptoms include misfires, rough idling, and reduced engine power. Solution: Replace the spark plugs and ignition wires. Estimated Cost to Fix: $200 - $400
• 7.5L V8
  • Cracked exhaust manifolds: Symptoms include exhaust leaks and a ticking noise. Solution: Replace the exhaust manifolds. Estimated Cost to Fix: $500 - $1,000
  • Transmission cooler lines leaking: Symptoms include transmission fluid leaks and a burnt smell. Solution: Replace the transmission cooler lines. Estimated Cost to Fix: $200 - $400
• 7.3L IDI V8
  • Glow plug failure: Symptoms include difficult starting and white smoke from the exhaust. Solution: Replace the glow plugs. Estimated Cost to Fix: $200 - $400
  • Injection pump failure: Symptoms include loss of engine power, rough idling, and black smoke from the exhaust. Solution: Replace the injection pump. Estimated Cost to Fix: $1,000 - $2,000+
• 7.3L DI V8
  • Turbocharger failure: Symptoms include loss of engine power, black smoke from the exhaust, and a whistling noise. Solution: Replace the turbocharger. Estimated Cost to Fix: $1,000 - $2,000+
  • High-pressure oil pump failure: Symptoms include loss of engine oil pressure and catastrophic engine failure. Solution: Replace the high-pressure oil pump. Estimated Cost to Fix: $1,000 - $2,000+

Transmission

• 4-speed manual
  • Synchros wearing out: Symptoms include difficulty shifting gears and grinding noises. Solution: Replace the synchros. Estimated Cost to Fix: $500 - $1,000
  • Input shaft bearing failure: Symptoms include a whining noise from the transmission and difficulty shifting gears. Solution: Replace the input shaft bearing. Estimated Cost to Fix: $500 - $1,000
• 5-speed manual
  • Synchros wearing out: Symptoms include difficulty shifting gears and grinding noises. Solution: Replace the synchros. Estimated Cost to Fix: $500 - $1,000
  • Output shaft seal leaking: Symptoms include transmission fluid leaks and a burnt smell. Solution: Replace the output shaft seal. Estimated Cost to Fix: $200 - $400
• 4-speed automatic
  • Torque converter failure: Symptoms include slipping gears, shuddering, and overheating. Solution: Replace the torque converter. Estimated Cost to Fix: $1,000 - $2,000+
  • Transmission control module (TCM) failure: Symptoms include erratic shifting, no shifting, and limp mode. Solution: Replace the TCM. Estimated Cost to Fix: $500 - $1,000

Suspension

• Ball joint failure: Symptoms include clunking noises, loose steering, and uneven tire wear. Solution: Replace the ball joints. Estimated Cost to Fix: $200 - $400 per joint
• Sway bar link failure: Symptoms include clunking noises when turning or hitting bumps. Solution: Replace the sway bar links. Estimated Cost to Fix: $100 - $200 per link

Electrical

• Alternator failure: Symptoms include dim lights, flickering gauges, and a dead battery. Solution: Replace the alternator. Estimated Cost to Fix: $500 - $1,000
• Starter failure: Symptoms include a clicking noise when trying to start the engine. Solution: Replace the starter. Estimated Cost to Fix: $400 - $800

Exterior

• Rust: Symptoms include rust spots on the body panels, frame, and undercarriage. Solution: Repair or replace the rusted parts. Estimated Cost to Fix: Varies widely depending on the extent of the damage
• Door lock failure: Symptoms include difficulty locking or unlocking the doors. Solution: Replace the door lock actuators. Estimated Cost to Fix: $200 - $400 per door

Interior

• Dashboard cracking: Symptoms include cracks in the dashboard. Solution: Replace the dashboard. Estimated Cost to Fix: $500 - $1,000
• Seat upholstery tears: Symptoms include rips or tears in the seat upholstery. Solution: Repair or replace the seat upholstery. Estimated Cost to Fix: Varies widely depending on the severity of the damage

Summary

The 1991 Ford F700 is a powerful and rugged truck, but it is also known for its high fuel consumption and lack of modern features. The vehicle’s engines and transmissions are generally reliable, but they can experience some common issues such as head gasket failure, intake manifold gasket failure, and transmission cooler line leaks. The suspension and electrical systems are also generally reliable, but they can experience some common issues such as ball joint failure, alternator failure, and starter failure. The vehicle’s exterior and interior are generally durable, but they can experience some common issues such as rust and dashboard cracking. Overall, the severity and cost of the issues associated with the 1991 Ford F700 vary depending on the specific issue and the severity of the damage.