1991 Jeep Comanche

Introduction to the 1991 Jeep Comanche

The 1991 Jeep Comanche is a compact pickup truck that was produced from 1986 to 1992. It is based on the Cherokee SUV and was offered with a variety of engine and transmission options. Popular engine choices include the 2.5L inline-4, 4.0L inline-6, and 2.1L turbo-diesel inline-4. Transmission options include a 5-speed manual, 3-speed automatic, and 4-speed automatic.

Owners generally appreciate the Comanche’s rugged design, off-road capabilities, and relatively affordable price. However, it has been criticized for its lack of interior space, limited towing capacity, and dated technology.

Engine

2.5L Inline-4

• Intake Manifold Gasket Failure:
  • Description/Symptoms: Coolant or oil leaks, overheating, rough idle
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found
• Valve Stem Seal Wear:
  • Description/Symptoms: Excessive oil consumption, blue smoke from exhaust
  • Solution: Replace valve stem seals
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found

4.0L Inline-6

• Cylinder Head Warping:
  • Description/Symptoms: Coolant leaks, overheating, loss of compression
  • Solution: Resurface cylinder head or replace cylinder head
  • Estimated Cost to Fix: $500 - $1000+
  • Recalls: 94V235000
• Intake Manifold Gasket Failure:
  • Description/Symptoms: Coolant or oil leaks, overheating, rough idle
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found

2.1L Turbo-Diesel Inline-4

• Turbocharger Failure:
  • Description/Symptoms: Loss of power, excessive smoke from exhaust
  • Solution: Replace turbocharger
  • Estimated Cost to Fix: $800 - $1200+
  • Recalls: None Found

Transmission

5-Speed Manual

• No Issues Found

3-Speed Automatic

• Transmission Slipping:
  • Description/Symptoms: Transmission does not engage properly, loss of power
  • Solution: Rebuild or replace transmission
  • Estimated Cost to Fix: $1500 - $2500+
  • Recalls: 93V013000

4-Speed Automatic

• Overdrive Solenoid Failure:
  • Description/Symptoms: Transmission does not shift into overdrive, check engine light may be on
  • Solution: Replace overdrive solenoid
  • Estimated Cost to Fix: $200 - $300+
  • Recalls: None Found

Suspension

• Leaf Spring Sag:
  • Description/Symptoms: Rear of vehicle sags, reduced handling
  • Solution: Replace leaf springs
  • Estimated Cost to Fix: $500 - $800+
  • Recalls: None Found
• Shock Absorber Wear:
  • Description/Symptoms: Rough ride, reduced handling
  • Solution: Replace shock absorbers
  • Estimated Cost to Fix: $200 - $300+
  • Recalls: None Found

Electrical

• Alternator Failure:
  • Description/Symptoms: Battery not charging properly, dimming lights
  • Solution: Replace alternator
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Starter Motor Failure:
  • Description/Symptoms: Engine does not crank or cranks slowly
  • Solution: Replace starter motor
  • Estimated Cost to Fix: $200 - $300+
  • Recalls: None Found

Exterior

• Rust Prone:
  • Description/Symptoms: Rust spots on body panels, frame, or other metal components
  • Solution: Preventative measures such as regular washing, waxing, and rustproofing
  • Estimated Cost to Fix: Varies depending on severity
  • Recalls: None Found
• Tailgate Corrosion:
  • Description/Symptoms: Corrosion or rust around tailgate hinges or latch
  • Solution: Replace tailgate or repair corrosion
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Interior

• Seat Fabric Tearing:
  • Description/Symptoms: Tearing or fraying of seat upholstery
  • Solution: Repair or replace seat upholstery
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found
• Dashboard Cracking:
  • Description/Symptoms: Cracks or fading on the dashboard
  • Solution: Replace dashboard or repair cracks
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found

Summary

The 1991 Jeep Comanche is a versatile and durable vehicle with off-road capabilities. However, it has its share of issues, particularly with its engine, suspension, and electrical components. Rust is also a common problem, especially in areas with high humidity or road salt use. The severity and cost of repairs can vary depending on the issue, but many problems can be addressed with preventative maintenance and timely repairs.