Jeep Comanche 1989 Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: Jeep Model: Comanche Year: 1989 Codes Chassis Code: XJ Vin Decoder Start Digit: 1 Vin Decoder Vehicle Type Digit: J 👋 Introduction Market Position Segment:...

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Sku: 420217

Tags: 1989 Cars Comanche Jeep Misc Truck

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Description

🏷️ Basic Information

Identification

Make:

Model:

Comanche

Year:

Codes

Chassis Code:

Vin Decoder Start Digit:

Vin Decoder Vehicle Type Digit:

👋 Introduction

Market Position

Segment:

Compact Pickup Truck

Target Audience:

DIY enthusiasts, independent repair shops, Jeep owners

Competitive Analysis

Key Competitors 1989:

Ford Ranger, Chevrolet S-10, Nissan Hardbody

Key Features

Distinctive Feature 1:

Unibody construction (shared with Cherokee XJ) for lighter weight and better on-road manners compared to body-on-frame competitors.

Distinctive Feature 2:

Jeep's legendary 4x4 capability, often featuring the Selec-Trac or Command-Trac systems.

Distinctive Feature 3:

Robust and versatile platform, adaptable for off-road use and utility.

📋 Manual Details

Coverage Areas

Manual Type:

Workshop Service Repair Manual

Language:

English

Format:

Digital Download (Printable)

Coverage Scope:

Complete Official Factory Service Information

Page Count

Estimated Pages:

Hundreds (specific count not provided, but implies comprehensive)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

All engine types, disassembly, assembly, inspection, and repair

Fuel System:

Fuel injection, fuel pump, injectors, lines, and tank service

Ignition System:

Spark plugs, coils, distributor (if applicable), timing, and diagnostics

Cooling System:

Radiator, water pump, thermostat, hoses, and fan assembly

Exhaust System:

Muffler, catalytic converter, pipes, and hangers

Transmission Manual:

Clutch, gear selection, internal components, and repair procedures

Transmission Automatic:

Torque converter, valve body, planetary gears, seal replacement, and diagnostics

Drivetrain 4Wd:

Transfer case operation, front and rear driveshafts, U-joints, and axle differentials

Suspension Front:

Coil springs, control arms, ball joints, steering knuckles, and shock absorbers

Suspension Rear:

Leaf springs, shock absorbers, and rear axle mounting

Steering System:

Steering gear, steering column, tie rods, and power steering pump/rack

Brake System:

Front and rear brakes (disc/drum), master cylinder, brake lines, calipers, wheel cylinders, and ABS (if equipped)

Electrical System General:

Battery, charging system, starter motor, wiring diagrams, and component testing

Lighting System:

Headlights, taillights, interior lights, and indicator lamps

HVAC System:

Heating, ventilation, and air conditioning system components and service

Body Exterior:

Body panels, doors, hood, tailgate, glass, and trim replacement

Body Interior:

Seats, dashboard, door panels, headliner, and trim components

Chassis Frame:

Frame inspection, repair, and mounting points

Emissions Control:

Emission control systems and component testing

Procedures Included

Scheduled Maintenance:

Detailed maintenance schedules and recommended service intervals

Troubleshooting:

Diagnostic charts, symptom analysis, and common issue resolution

Disassembly Assembly:

Step-by-step instructions for component removal and installation

Component Testing:

Procedures for testing electrical and mechanical components

Specifications Data:

Torque values, clearances, fluid capacities, and electrical specifications

Wiring Diagrams:

Comprehensive electrical wiring diagrams for all systems

Technical Depth

Depth Level:

Full Factory Service Level (comprehensive rebuild and repair)

Diagnostic Capability:

Advanced diagnostic procedures for identifying and rectifying faults

Special Tools:

Identification of any special tools required for specific procedures

📊 Manual Specifications

File Format

Digital Format:

Print Quality

Printable:

High-resolution, suitable for printing individual pages or the entire manual

Binding Type

Binding Recommendation:

Digital format allows for custom binding (e.g., spiral-bound for workshop use)

Paper Type

Paper Recommendation:

Durable paper recommended for workshop environments (if printed)

⚙️ Engine Specifications

Primary Engine

Engine Displacement 1:

Engine Type 1:

AMC 150 (Inline-4, OHV)

Horsepower 1:

121 hp @ 4800 rpm (approx.)

Torque 1:

190 lb-ft @ 2000 rpm (approx.)

Optional Engine

Engine Displacement 2:

Engine Type 2:

AMC 242 (Inline-6, OHV)

Horsepower 2:

177 hp @ 4000 rpm (approx.)

Torque 2:

220 lb-ft @ 2000 rpm (approx.)

Fuel System

Fuel Delivery:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded Gasoline

🔧 Transmission

Standard

Transmission Type Standard:

5-Speed Manual (e.g., Aisin AW4 variant or similar)

Optional

Transmission Type Optional:

3-Speed Automatic (e.g., Chrysler A727 Torqueflite or 4-speed AW4)

Features

Transfer Case Options:

Selec-Trac (full-time 4WD with 2WD option) or Command-Trac (part-time 4WD)

📐 Dimensions

Exterior

Wheelbase Short:

113.0 inches (2870 mm)

Wheelbase Long:

124.5 inches (3162 mm) - Likely for long bed models

Overall Length Short:

175.3 inches (4453 mm) - Approx.

Overall Length Long:

192.1 inches (4879 mm) - Approx.

Cargo

Bed Length Short:

6 feet (72 inches)

Bed Length Long:

7 feet (84 inches)

Weights

Curb Weight Estimate:

3,500 - 4,000 lbs (depending on configuration)

🛡️ Safety Features

Ratings

NHTSA Rollover Rating Estimate:

Likely 3-star (typical for trucks of this era, subject to specific testing)

Active Features

Optional (rear-wheel ABS typically)

Passive Features

Seatbelts:

Standard front seatbelts, optional rear seatbelts

Airbags:

Not standard; driver's side airbag may have been an option late in the model year or for specific trims.

💡 Technology Features

Infotainment

Audio System Options:

AM/FM radio, cassette player, optional premium sound system.

Driver Assistance

Cruise Control:

Optional

Connectivity

Connectivity Features:

Limited by era; primarily mechanical and basic electrical systems.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000 miles or 3 months (typical recommendation, consult manual for specifics)

Tire Rotation Interval:

Every 7,500 miles or 6 months

Transmission Fluid Change:

Every 30,000 - 50,000 miles (depending on usage and fluid type)

Fluid Specifications

Engine Oil Type:

API SG/SH SAE 10W-30 or 10W-40 (check manual for specific weight based on climate)

Coolant Type:

Ethylene Glycol based antifreeze (green)

Brake Fluid Type:

DOT 3

Transmission Fluid Auto:

ATF+3 or ATF+4 (Chrysler spec)

Transfer Case Fluid:

NP231 (part-time): TF-AMC 400 (similar to Dexron II/III) or NP242 (full-time): TF-AMC 400

Rear Axle Differential Fluid:

API GL-5 SAE 75W-90 (or 80W-90, consult manual)

Known Issues

Common Issue 1:

Crankshaft position sensor failure (leading to no-start or stalling)

Common Issue 2:

Rust issues, particularly on rocker panels, cab corners, and rear wheel arches.

Common Issue 3:

Leaky valve cover gaskets and oil pan gaskets.

Common Issue 4:

Worn U-joints in the driveshafts, leading to clunking noises.

Common Issue 5:

Aging cooling system components (radiator, hoses, water pump).

📚 Vehicle History

Brand Heritage

Jeep Legacy:

Jeep has a long history of robust, capable off-road vehicles dating back to WWII Willys Jeeps.

Model Evolution

Comanche Introduction:

Introduced in 1986 as Jeep's entry into the compact pickup truck market, sharing its platform with the popular Cherokee (XJ).

Comanche 1989 Updates:

1989 saw refinements, including potential updates to engine management, interior features, and trim levels. The 4.0L inline-six became increasingly popular.

Production

Production Years:

1986-1992

Manufacturing Location:

Toledo, Ohio, USA

🏆 Awards & Recognition

Recognitions

Off Road Capability Recognition:

Consistently recognized for its off-road prowess, inheriting Jeep's reputation.

Ratings

Longevity Reputation:

Known for its durability and long service life when properly maintained.