Jeep Liberty Service & Repair Manual 2002–2004 (P/N 81-370-02060)

• Covers the 2002 Jeep Liberty KJ in 4x2 and 4x4 configurations, including Sport, Limited, and Renegade designations with 2.4L MPI four-cylinder and 3.7L V6 MPI gasoline engines. The set contains a 2,033-page service manual PDF plus a separate 15-page parts-identification file.
• Engine repair sections document assembly removal and installation, cylinder-head and valve-train work, crankshaft, piston, connecting-rod and bearing inspection, lubrication-system service, the 3.7L timing-chain and balance-shaft system, and the 2.4L timing-belt and balance-shaft drive.
• Transmission and driveline coverage identifies the NV1500 and NV3550 manual transmissions, 45RFE automatic transmission, and NV231 and NV242 transfer cases, with removal, internal disassembly, inspection, reassembly, adjustment, pressure testing, and operational checks.
• Axle, suspension, and brake repair includes the 186FIA front axle, 198RBI and 8 1/4 rear axles, propeller shafts, half shafts, Trac-Lok differentials, wheel alignment, control arms, ball joints, hubs, coil springs, base brakes, ABS, and DRBIII-assisted hydraulic control unit bleeding.
• Cooling, fuel, steering, and clutch chapters cover system diagnosis, radiator and water-pump service, fuel-delivery and injection-component testing, EVAP/ORVR components, power-steering pressure checks and bleeding, plus clutch disc, flywheel, release bearing, hydraulic linkage, pedal, and switch replacement.
• Electrical information covers PCM/SKIM programming, TCM Quick Learn, BCM and PCI-bus systems, charging and starting, ignition sensors, restraints, lighting, power accessories, and instrument-cluster functions. A 470-page wiring section supplies circuit diagrams, connector pin-outs, grounds, and splice locations.
• Body and HVAC chapters cover structural repair dimensions, weld/adhesive and sealer locations, doors, swing gate, stationary glass, sunroof, seats, consoles and trim, plus A/C performance testing, HVAC housing service, refrigerant recovery, evacuation, charging, and component replacement.

Coverage and Manual Structure

This is factory service information for the 2002 KJ platform, not a multi-year 2002–2004 manual. The 2002 Liberty Service Manual is identified as P/N 81-370-02060, and the supplied PDF incorporates the 2.4L gas-engine supplement sections. Each group is organized around description, operation, diagnosis and testing, specifications, special tools, removal and installation, and full disassembly and assembly where applicable.

The 3.7L engine section covers separate cylinder-head procedures, camshafts, valves and seats, rocker arms, crankshaft and main bearings, piston and rod fitting, oil-pump repair, valve timing, balance shaft, and timing-chain components. The 2.4L material adds camshaft and hydraulic-lifter work, lower-engine inspection, timing-belt installation, tensioner service, and balance-shaft chain repair.

Drivetrain, Chassis, and Special Tools

Axle procedures include differential diagnosis, axle removal, case and bearing service, ring-and-pinion replacement, pinion-depth selection, backlash adjustment, bearing preload, and tooth-contact pattern checks. Referenced factory tools include Pinion Depth Set 6774, Spreader W-129-B, Camshaft Holder 8428, and 45RFE End Play Set 8266, with related pullers, installers, pressure gauges, and clutch spring compressors.

The 45RFE chapter provides hydraulic-flow charts, line-pressure testing, clutch clearance and end-play data, oil-pump and valve-body repair, solenoid/TRS service, planetary geartrain work, and torque-converter checks. The manual-transmission and transfer-case chapters cover internal repair, shift components, seals, position sensors, fluid service, and complete case disassembly and assembly.

Wiring, Body Repair, and Parts Identification

The wiring material is organized by circuit group rather than a small collection of generic schematics. Notable sections include 8W-10 Power Distribution, 8W-30 Fuel/Ignition System, 8W-31 Transmission Control System, 8W-43 Airbag System, 8W-80 Connector Pin-Outs, and 8W-91 Connector/Ground/Splice Location, paired with component tests, module service, and connector-location views.

Body repair information includes structural assembly views, weld and structural-adhesive locations, sealer maps, body-opening dimensions, and gap-and-flush checks. The 15-page parts-identification file is an estimating-style reference, not a full Jeep parts catalog; it provides illustrated part locations, OE numbers, labor-operation notes, and period list prices for major body, chassis, cooling, electrical, and restraint areas.

Specifications and Scope Limits

Specification sections provide component-specific torque charts, fluid capacities, alignment data, engine inspection limits, differential setup values, transmission clearances and pressure-test information, electrical test values, and A/C refrigerant and oil data. The PDF includes component testing, PCM/SKIM programming, TCM Quick Learn, and DRBIII-assisted ABS bleeding. Complete DTC fault trees for many powertrain and networked systems are referenced to separate Diagnostic Procedures publications and are not included in this set.

The axle rebuild chapters warn that backing off the pinion nut does not correct an over-crushed collapsible spacer; incorrect preload can damage bearings and the gear set. The 3.7L valve-train section also flags excess oil on the camshaft sprocket retaining bolt as an over-torque and bolt-failure risk. For underbody, restraint, and A/C repair, support the vehicle correctly, disable the supplemental restraint system as directed, and recover refrigerant with approved equipment before opening the system.