Vehicle Segment:
Compact SUV, Off-Road Vehicle
Jeep Heritage:
Continuation of Jeep's legacy in rugged, trail-capable vehicles.
Key Competitors:
Toyota Tacoma (SUV variant), Land Rover Defender (older models), Suzuki Samurai/Vitara.
Off Road Capability:
Renowned for its solid axle front suspension (on most TJ models), short wheelbase, and available four-wheel-drive systems (Command-Trac, Selec-Trac).
Design:
Iconic Jeep design with round headlights, seven-slot grille, and removable doors/top for open-air driving.
Years Covered:
1999, 2000, 2001, 2002, 2003, 2004
Specific Models Covered:
Jeep Wrangler (TJ)
Type:
Factory Service Repair Manual
Function:
Diagnostic, Repair, Maintenance, Overhaul
Format:
Digital (likely PDF)
Powertrain:
Engine mechanical, engine performance, fuel system, ignition system, lubrication, cooling system, exhaust system, manual transmission, automatic transmission, transfer case, driveline.
Chassis:
Suspension (front and rear), steering system, braking system (front and rear), wheels and tires.
Body:
Body construction, exterior trim, interior trim, doors, windows, seats, heating, ventilation, and air conditioning (HVAC).
Electrical:
Chassis electrical system, body electrical system, instrument cluster, lighting, power windows, power locks, audio systems, diagnostic trouble codes (DTCs).
Diagnostics:
Symptom-based diagnostics, component testing, wiring diagrams, diagnostic trouble code (DTC) interpretation and resolution.
Maintenance:
Scheduled maintenance intervals, fluid checks and changes, filter replacements, lubrication points.
Repair:
Component removal and installation, assembly and disassembly, torque specifications, adjustments.
Overhaul:
Detailed engine rebuild procedures, transmission overhaul, differential rebuilding, transfer case servicing.
Depth:
Comprehensive from basic maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic strategies.
Digital Format:
PDF (Portable Document Format)
Searchability:
Likely includes searchable text for quick access to information.
Reproducibility:
Designed for high-quality printing, ensuring legibility of diagrams and text.
Original Binding:
Typically spiral-bound or perfect-bound for professional dealership use.
Original Paper:
Durable, often coated paper designed to withstand shop environments.
Engine Type:
Inline 6-cylinder, Overhead Valve (OHV)
Engine Displacement:
4.0L (242 cubic inches)
Horsepower:
181 hp @ 4,600 rpm
Torque:
220 lb-ft @ 3,200 rpm
Engine Type:
Inline 4-cylinder, Single Overhead Cam (SOHC)
Engine Displacement:
2.5L (150 cubic inches)
Horsepower:
119 hp @ 4,800 rpm
Torque:
145 lb-ft @ 3,200 rpm
Fuel Delivery:
Multi-point Fuel Injection (MPI)
Fuel Type:
Unleaded gasoline
ECU Type:
Chrysler/Jeep proprietary ECU (specific part number varies by year and engine)
Type:
5-Speed Manual Transmission
Common Models:
NV3550 (for 4.0L), AX-5 (for 2.5L)
Type:
4-Speed Automatic Transmission
Common Models:
42RLE (later models) or earlier Chrysler transmissions.
Standard System:
NV231 Command-Trac (Part-time, 2-high, 4-high, Neutral, 4-low)
Optional System:
NV241OR Selec-Trac (Full-time 4WD option available on some models/trims)
NHTSA Front Impact:
4-star
IIHS Side Impact:
Acceptable (varies by year and specific test)
ABS:
Anti-lock Braking System (ABS) available or standard on rear wheels, optional on front.
Traction Control:
Limited Slip Differential (LSD) or locking differentials often available as options for enhanced traction.
Airbags:
Driver and passenger front airbags.
Seatbelts:
Three-point seat belts with pretensioners.
Audio System:
Factory AM/FM/Cassette or CD player, often with optional 6-disc CD changer. Speaker configurations vary (e.g., 2-speaker, 6-speaker sound bar).
Navigation:
No factory integrated navigation systems available for this generation. Aftermarket solutions are common.
Cruise Control:
Available on most models.
Power Features:
Power windows and locks were optional, becoming more common in later years of the TJ generation.
Oil Change Interval:
Every 3,000 - 5,000 miles (5,000 - 8,000 km) or 6 months, depending on driving conditions.
Transmission Fluid Change:
Manual: Every 30,000 - 60,000 miles (48,000 - 96,000 km). Automatic: Every 30,000 - 50,000 miles (48,000 - 80,000 km) under normal use.
Coolant Flush:
Every 30,000 miles (48,000 km) or 2 years.
Spark Plug Replacement:
4.0L: Approx. 100,000 miles. 2.5L: Approx. 60,000-100,000 miles (check manual for specific recommendations).
Engine Oil:
SAE 10W-30 (API SG or higher quality) for 4.0L. SAE 10W-30 or 10W-40 for 2.5L.
Transmission Fluid Manual:
NV3550: DOT 3 brake fluid or equivalent. AX-5: Dexron III or equivalent ATF.
Transmission Fluid Automatic:
Chrysler ATF+4 (or equivalent)
Transfer Case Fluid:
NV231/NV241OR: Dexron III or equivalent ATF.
Coolant:
Mopar OAT (Organic Additive Technology) Extended Life Coolant or equivalent (Chrysler's HOAT may be acceptable).
Brake Fluid:
DOT 3 brake fluid.
Common Wear Items:
Clutch wear (manual transmission), U-joints, tie rod ends, ball joints, exhaust manifold cracks (4.0L), rear main seal leaks, alternator, water pump.
Specific Tj Concerns:
Death wobble (often related to steering and suspension component wear), axle seal leaks, NP241OR transfer case chain stretch.
Jeep Lineage:
Direct descendant of the original Willys MB military Jeep, embodying ruggedness and off-road prowess.
Tj Introduction:
The TJ generation replaced the YJ Wrangler in 1997, marking a significant return to coil springs and the iconic round headlights.
Key Updates Tj:
Introduced coil springs instead of leaf springs for improved ride and articulation, redesigned interior, and a more modern chassis.
Production Period:
1997-2006
Manufacturing Location:
Toledo, Ohio, USA
