Jeep Wrangler 1999 Service Repair Manual Workshop

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🏷️ Basic Information Identification Make: Jeep Model: Wrangler Year: 1999 Generation Generation Code: TJ Codes Chassis Code: TJ 👋 Introduction Market Position Vehicle Segment: Compact SUV / Off-road Vehicle Target...

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标签: 1999 Car Cars Jeep Misc Wrangler

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Description

🏷️ Basic Information

Identification

Make:

Model:

Wrangler

Year:

Generation

Generation Code:

Codes

Chassis Code:

👋 Introduction

Market Position

Vehicle Segment:

Compact SUV / Off-road Vehicle

Target Audience:

Enthusiasts, off-roaders, DIY mechanics, independent repair shops.

Competitive Analysis

Key Competitors 1999:

Toyota 4Runner, Ford Bronco, Chevrolet Blazer, Suzuki Vitara.

Key Features

Design Philosophy:

Rugged, go-anywhere capability, iconic Jeep styling, solid axle front suspension (distinguishing feature from many competitors).

Manual Purpose:

To provide the same comprehensive repair and maintenance information used by authorized Jeep service centers.

📋 Manual Details

Coverage Areas

Primary Coverage:

1999 Jeep Wrangler (TJ)

Secondary Coverage:

May include some relevant information for late 1998 and early 2000 models.

Page Count

Estimated Page Count:

1000+

Manual Type

Manual Type:

Factory Authorized Service Manual / Workshop Manual

Language

Language:

English

Format

Format:

Printed Book

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Complete overhaul, component testing, specifications, and procedures for all 1999 Wrangler engines.

Engine Performance:

Engine tuning, diagnostics, emissions control systems, fuel delivery, ignition system.

Transmission Manual:

Service, repair, and overhaul procedures for the NV3550 5-speed manual transmission.

Transmission Automatic:

Service, repair, and overhaul procedures for the 32RH 3-speed automatic transmission.

Transfer Case:

Service and repair for the NP231 Command-Trac part-time 2-speed transfer case.

Drivetrain:

Axle assembly (Dana 30 front, Dana 35c rear), propeller shafts, U-joints, hub assemblies.

Suspension:

Front and rear suspension components, springs, shocks, control arms, track bars, bushings.

Steering:

Power steering system, steering column, steering gear, linkage, alignment procedures.

Brakes:

Front and rear brake systems (disc front, drum rear), ABS (if equipped), hydraulic system, parking brake.

Electrical System:

Battery, charging system, starting system, lighting, interior and exterior electrical components.

Body And Frame:

Body construction, frame, doors, hood, fenders, bumpers, interior trim, convertible top.

HVAC:

Heating, ventilation, and air conditioning (HVAC) system service and repair.

Diagnostics:

Diagnostic trouble codes (DTCs), diagnostic procedures, scan tool usage.

Procedures Included

Maintenance:

Oil changes, filter replacements, fluid checks and changes, lubrication, tune-ups.

Troubleshooting:

Step-by-step diagnostic flowcharts and procedures for common and uncommon issues.

Repair:

Detailed instructions for component removal, disassembly, repair, reassembly, and installation.

Overhaul:

Complete engine, transmission, and transfer case overhaul procedures.

Special Tools:

Identification and usage instructions for specialized tools required for specific repairs.

Technical Depth

Depth Level:

Comprehensive (from basic maintenance to full engine/transmission rebuilds and complex diagnostics).

📊 Manual Specifications

File Format

File Format Quality:

N/A (Printed Book)

Print Quality

Print Quality:

Professional, dealership-quality printing.

Binding Type

Binding Type:

Sturdy binding (e.g., perfect binding, spiral bound for durability in a workshop environment).

Paper Type

Paper Type:

Durable, high-quality paper suitable for workshop use, resistant to oil and grease.

⚙️ Engine Specifications

Primary Engine

Engine Code 1:

4.0L Inline-6 OHV (AMC 242)

Displacement 1:

3960 cc (242 cubic inches)

Bore X Stroke 1:

3.875 in x 3.562 in (98.4 mm x 90.5 mm)

Compression Ratio 1:

8.8:1

Horsepower 1:

182 hp @ 4,200 rpm

Torque 1:

220 lb-ft @ 3,200 rpm

Optional Engine

Engine Code 2:

2.5L Inline-4 OHV (AMC 150)

Displacement 2:

2469 cc (150 cubic inches)

Horsepower 2:

119 hp @ 4,700 rpm

Torque 2:

145 lb-ft @ 3,000 rpm

Fuel System

Fuel Delivery:

Multi-port Fuel Injection (MPFI)

Fuel Type:

Unleaded gasoline

Recommended Octane:

87 octane (minimum)

🔧 Transmission

Standard

Transmission Type Standard:

NV3550 5-speed Manual Transmission

Optional

Transmission Type Optional:

32RH 3-speed Automatic Transmission

Features

Transfer Case:

NP231 Command-Trac (Part-time, 2-speed)

Manual Transmission Fluid Spec:

Mopar Manual Transmission Lubricant (or equivalent, consult manual for specific PN/specs)

Automatic Transmission Fluid Spec:

ATF+3 (or equivalent, consult manual for specific PN/specs)

📐 Dimensions

Exterior

Wheelbase Short:

93.4 inches (2372 mm)

Wheelbase Long:

103.4 inches (2626 mm)

Length Short:

151.3 inches (3843 mm)

Length Long:

161.3 inches (4097 mm)

Width:

66.5 inches (1689 mm)

Height:

70.5 inches (1791 mm)

Weights

Curb Weight Approx Short:

3,200 - 3,500 lbs (1451 - 1588 kg)

Curb Weight Approx Long:

3,300 - 3,700 lbs (1497 - 1678 kg)

Gross Vehicle Weight Rating Gvwr:

Varies by configuration, typically around 4,750 - 5,000 lbs.

🛡️ Safety Features

Ratings

NHTSA Rollover Resistance Rating:

4/5 Star (for 4-door model, 2-door may differ)

Active Features

Optional Anti-lock Braking System (ABS) on rear wheels, or 4-wheel ABS available on some models.

Passive Features

Airbags:

Driver and passenger airbags.

Seatbelts:

Front 3-point seat belts with pretensioners, rear lap and shoulder belts.

Roll Cage:

Integrated roll cage structure.

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM radio with cassette player, optional CD player. Basic speaker setup.

Driver Assistance

ABS Availability:

Optional, typically on rear wheels or 4-wheel.

Cruise Control:

Optional.

Connectivity

Connectivity Features:

None (This era of vehicle predates widespread electronic connectivity features).

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000 miles or 3 months (severe duty) / 7,500 miles or 6 months (normal duty, consult manual for specifics).

Engine Oil Filter Change:

Replace with oil change. Recommended Part Number: MO-090 (Oil Filter).

Air Filter Replacement:

Inspect every 15,000 miles, replace as needed. Recommended Part Number: 4775605.

Coolant Flush Interval:

Every 30,000 miles or 24 months.

Fluid Specifications

Engine Oil Type Capacity 4.0L:

API SG or SH, SAE 10W-30. Capacity: 6 US quarts (5.7 liters) with filter.

Engine Oil Type Capacity 2.5L:

API SG or SH, SAE 10W-30. Capacity: 5 US quarts (4.7 liters) with filter.

Brake Fluid Type:

DOT 3.

Power Steering Fluid Type:

ATF+3 (consult manual for specific PN).

Known Issues

Common Wear Items:

Control arm bushings, track bar bushings, exhaust manifold cracks (on 4.0L), clutch wear (manual transmission), rear main seal leaks.

Typical Repair Needs:

Brake component replacement, radiator hoses, water pump, fuel pump, serpentine belt, starter motor.

📚 Vehicle History

Brand Heritage

Jeep Legacy:

Jeep's reputation for extreme off-road capability and durability dating back to WWII.

Model Evolution

Tj Introduction:

The TJ generation debuted for the 1997 model year, replacing the YJ. It marked a significant return to the classic Jeep design with coil springs and a passenger-friendly interior.

Tj Differences From Yj:

Coil spring suspension (vs. leaf springs), improved interior, standard driver-side airbag, NV3550 transmission introduction in later years.

Production

Production Location:

Toledo, Ohio, USA

🏆 Awards & Recognition

Recognitions

Off Road Acclaim:

Consistently recognized as one of the most capable off-road vehicles in its class.