🏷️ Basic Information

Make:

Jeep

Model:

J10 Standard Cab Pickup

Year:

1979

Chassis Code:

J-Series

Engine Codes:

Matching specific engine options for 1979 J10

👋 Introduction

Segment:

Full-size pickup truck, established reputation for durability and off-road capability.

Competitors:

Ford F-Series, Chevrolet C/K series, Dodge Ram.

Vehicle Strengths:

Robust chassis, strong inline-six and V8 engine options, proven 4x4 systems, utilitarian design, excellent towing and hauling capacity.

Manual Value Proposition:

Provides essential information for owners and mechanics to maintain, repair, and restore the iconic 1979 Jeep J10.

📋 Manual Details

Systems Covered:

Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical System, Fuel System, Cooling System, Exhaust System, Body and Chassis, Interior Components, HVAC, Diagnostic Procedures.

Pages:

Hundreds (specific count not provided, but described as complete)

Type:

Workshop Service Repair Manual

Language:

English

Format:

Downloadable (likely PDF)

File Format:

Digital Download (likely PDF)

Printability:

Designed for printing, allowing users to create a physical copy for workshop use.

Searchability:

Likely features searchable text for quick access to specific information.

📖 Manual Coverage

Engine Mechanical:

Engine assembly, disassembly, rebuilding, component testing, lubrication, timing, cylinder head, block, pistons, crankshaft, camshaft, valves.

Fuel System:

Fuel tank, fuel pump, fuel lines, carburetor (specific models), emissions control systems.

Cooling System:

Radiator, water pump, thermostat, cooling fan, hoses, coolant specifications.

Exhaust System:

Exhaust manifolds, pipes, muffler, catalytic converter (if applicable), hangers, gaskets.

Transmission Manual:

Disassembly, assembly, inspection, repair of manual transmissions (e.g., T-90, T-15, T-18, T-98).

Transmission Automatic:

Repair and maintenance of automatic transmissions (e.g., TH400, TH350, TorqueFlite - depending on Jeep application).

Drivetrain:

Transfer case (e.g., NP205, NP203), front and rear axles (Dana 44, AMC 20), driveshafts, U-joints, differential service, lubrication.

Suspension:

Front and rear suspension components, leaf springs, shock absorbers, control arms, bushings, alignment specifications.

Steering:

Steering gear, steering column, tie rod ends, power steering system (if equipped), hydraulic pump, fluid.

Brakes:

Front and rear brake systems (disc and drum), master cylinder, brake lines, calipers, wheel cylinders, brake pads, shoes, parking brake, fluid specifications.

Electrical System:

Battery, charging system (alternator, regulator), starting system (starter motor), ignition system (distributor, coil, plugs, wires), lighting, gauges, horn, wiring diagrams.

Body Chassis:

Frame inspection and repair, body panel removal and installation, doors, hood, tailgate, bumpers, glass, seals, trim.

HVAC:

Heating system, ventilation, air conditioning system (if equipped), blower motor, heater core, AC components, refrigerant, system service.

Routine Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, lubrication points, tire rotation, inspection procedures.

Troubleshooting:

Systematic diagnostic procedures for common and uncommon problems, fault diagnosis charts, electrical troubleshooting guides.

Repair And Rebuild:

Detailed step-by-step instructions for component disassembly, cleaning, inspection, repair, and reassembly of all major systems.

Component Replacement:

Instructions for replacing worn or damaged parts such as water pump, alternator, starter, brake pads, clutch, fuel pump, etc.

Alignment And Calibration:

Wheel alignment specifications and procedures, steering wheel alignment, timing adjustments.

Electrical Diagnostics:

Use of multimeters, oscilloscope usage (basic), troubleshooting wiring harnesses, relay and fuse testing, circuit tracing.

Depth Level:

Comprehensive: Covers from basic maintenance to complete engine and transmission rebuilds, including diagnostic procedures and specifications.

Diagnostic Capability:

Advanced diagnostics with detailed symptom-to-cause guides and troubleshooting trees for all major vehicle systems.

Rebuild Procedures:

Detailed rebuilding procedures for engines, transmissions, differentials, and major powertrain components.

Wiring Diagrams:

Includes comprehensive, detailed wiring diagrams for all electrical systems, facilitating troubleshooting and repair.

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Resolution:

High resolution, suitable for clear reproduction of diagrams and text.

Binding:

N/A (Digital Download)

Paper Quality:

N/A (Digital Download)

⚙️ Engine Specifications

Engine 1 Type:

Inline-6 Cylinder (e.g., 258 cu in / 4.2L)

Engine 1 Bore Stroke:

Refer to manual for specific dimensions

Engine 1 Compression Ratio:

Refer to manual for specific ratio

Engine 1 Horsepower:

Approx. 112-115 hp @ 3200-3500 RPM (for 258ci)

Engine 1 Torque:

Approx. 205-210 lb-ft @ 1600-2000 RPM (for 258ci)

Engine 2 Type:

V8 Cylinder (e.g., 360 cu in / 5.9L AMC)

Engine 2 Horsepower:

Approx. 140-150 hp (for 360ci)

Engine 2 Torque:

Approx. 280-290 lb-ft (for 360ci)

Fuel Delivery:

Carburetor (e.g., Motorcraft 2150, Rochester Quadrajet variants for V8s, Carter BBD for I6)

Fuel Type:

Unleaded gasoline

Ignition System:

Breaker point ignition or electronic ignition (e.g., Prestolite/Chrysler system).

Emissions Control:

Catalytic converter, air injection system, EGR valve (depending on state regulations).

🔧 Transmission

Transmission Type Standard:

Manual Transmission (e.g., 3-speed or 4-speed)

Transmission Type Optional:

Automatic Transmission (e.g., TH400, TorqueFlite A727)

Transfer Case Options:

New Process (NP) 203 (part-time, full-time 4WD) or NP205 (part-time, robust).

Clutch Type:

Dry, single plate diaphragm (for manual transmissions).

Automatic Transmission Fluid:

ATF Type A Suffix A or Dexron-II (refer to manual for precise specification).

📐 Dimensions

Wheelbase:

119 inches (standard cab)

Bed Length:

6.5 ft (standard) or 8 ft (optional long bed)

Curb Weight:

Approximately 3800-4500 lbs (varies with configuration)

Gross Vehicle Weight Rating:

Varies based on configuration, typically 5000-6000+ lbs.

Wheel Bolt Pattern:

5x5.5 inch (139.7mm)

Standard Tire Size:

e.g., 235/75R15, P215/75R15, or LT (Light Truck) equivalents.

🛡️ Safety Features

Crash Test Data:

No specific government crash test ratings available for this era, but designed to meet federal safety standards of the time.

Braking System:

Power-assisted front disc brakes, rear drum brakes.

Seat Belts:

Lap belts and shoulder belts (3-point) in the cab.

Construction:

Body-on-frame construction for durability and robustness.

💡 Technology Features

Audio System:

Basic AM/FM radio, optional AM/FM with cassette player. Speaker placement in dash and doors.

Cruise Control:

Optional feature available on some models.

Connectivity Features:

No modern connectivity features (Bluetooth, USB, etc.) as standard.

🔧 Maintenance

Oil Change Interval:

Typically every 3,000-5,000 miles or 3-6 months (refer to manual for precise recommendation based on driving conditions).

Transmission Fluid Change:

Manual: Annually or every 12,000-24,000 miles. Automatic: Every 24,000-48,000 miles or as recommended.

Differential Fluid Change:

Every 24,000-36,000 miles, especially if used for towing or off-roading.

Engine Oil:

API SF or SG rated oils, SAE 10W-30 or 10W-40 commonly recommended (check manual for specific viscosity and capacity).

Coolant:

Ethylene glycol based antifreeze, 50/50 mix with distilled water. Capacity varies by engine. (e.g., 258ci: ~12 quarts)

Brake Fluid:

DOT 3 or DOT 4 (refer to manual for precise specification).

Power Steering Fluid:

Dexron-II or equivalent power steering fluid (if equipped).

Common Wear Items:

Leaf spring bushings, U-joints, exhaust system components, carburetor wear, water pump, brake components, potential for rust.

Engine Wear:

AMC engines are generally robust, but can suffer from valve guide wear and potential head gasket issues if overheated.

Electrical Gremlins:

Older wiring harnesses can degrade, leading to intermittent electrical issues.

📚 Vehicle History

Jeep Legacy:

Jeep has a long history of producing rugged, durable vehicles, originating from WWII military vehicles. Known for off-road prowess.

J Series Lineage:

The J-Series pickups, including the J10, were part of Jeep's full-size truck line, which ran from the mid-1960s to 1987, evolving from earlier FC (Forward Control) models.

Manufacturing Location:

Toledo, Ohio, USA

Production Period:

The J-Series were produced from 1963 to 1987. The 1979 model year falls within a significant period of AMC ownership of Jeep.

🏆 Awards & Recognition

Off Road Acclaim:

Jeep vehicles are consistently recognized for their off-road capabilities, a trait inherited by the J10 models.