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Jeep Liberty 2003 2.4L and 3.7L. Workshop Service Repair Manual ebook
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Basic Information Identification Make: Jeep Model: Liberty Year: 2003 Engine Variants Covered: 2.4L, 3.7L Codes Platform Code: KJ Introduction Market Position Segment: Compact SUV Target Audience: DIY enthusiasts, independent repair...
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| Basic Information | |
| Identification | |
| Make: | Jeep |
| Model: | Liberty |
| Year: | 2003 |
| Engine Variants Covered: | 2.4L, 3.7L |
| Codes | |
| Platform Code: | KJ |
| Introduction | |
| Market Position | |
| Segment: | Compact SUV |
| Target Audience: | DIY enthusiasts, independent repair shops, professional mechanics seeking detailed repair information for the Jeep Liberty. |
| Competitive Analysis | |
| Competitors: | Ford Escape, Toyota RAV4, Honda CR-V, Nissan Xterra. |
| Key Features | |
| Vehicle Identity: | Body-on-frame construction, available four-wheel drive, Jeep's off-road heritage in a compact package. |
| Manual Utility: | Provides in-depth technical guidance essential for maintaining and repairing the specific engine and drivetrain configurations of the 2003 Jeep Liberty. |
| Manual Details | |
| Coverage Areas | |
| General Coverage: | Comprehensive workshop service and repair for Jeep Liberty 2003 models with 2.4L and 3.7L engines. |
| Page Count | |
| Estimated Pages: | 1500+ |
| Manual Type | |
| Type: | Workshop Service and Repair Manual |
| Language | |
| Language: | English |
| Format | |
| Format: | eBook (Downloadable PDF) |
| Manual Coverage | |
| Systems Covered | |
| Powertrain: | Engine mechanical (2.4L DOHC I4, 3.7L SOHC V6), fuel system, ignition system, exhaust system, engine management, cooling system, lubrication system, starting and charging system. |
| Transmission: | Automatic transmission (42LE/45RFE) and manual transmission (NV1500) service, repair, and overhaul procedures. |
| Drivetrain: | Transfer case (NV231, NV244) operation and service, front and rear axle assemblies, drive shafts, CV joints, differential service. |
| Suspension Steering: | Front and rear suspension systems (independent front, solid rear axle), steering gear, power steering system, wheel alignment specifications. |
| Brakes: | Front and rear brake systems (disc front, drum/disc rear depending on configuration), ABS, parking brake, hydraulic system component replacement and bleeding. |
| Electrical Electronics: | Complete vehicle electrical system, wiring diagrams, battery, alternator, starter, lighting, instrument cluster, body control module (BCM), power accessories, diagnostic trouble codes (DTCs). |
| Body Chassis: | Body and interior components, doors, glass, upholstery, frame, collision repair information, HVAC system, emissions control system. |
| Procedures Included | |
| Maintenance: | Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs, belt inspections and replacements, spark plug replacement, brake pad/shoe replacement. |
| Troubleshooting: | Diagnostic procedures for all major vehicle systems, symptom-based troubleshooting guides, electrical diagnostics. |
| Repair Overhaul: | Engine disassembly and reassembly, transmission overhaul, brake component replacement, suspension component replacement, electrical component diagnosis and repair. |
| Diagnostics: | OBD-II diagnostics, specific component testing, wiring diagram interpretation. |
| Technical Depth | |
| Depth: | Detailed step-by-step repair instructions, torque specifications, special tool requirements, diagnostic flowcharts, specifications and tolerances for all major components. |
| Manual Specifications | |
| File Format | |
| File Type: | |
| Searchability: | Searchable text content for quick information retrieval. |
| Print Quality | |
| Printability: | Printable for hard copy use in a workshop environment. |
| Binding Type | |
| Binding: | N/A (eBook format) |
| Paper Type | |
| Paper Quality: | N/A (eBook format) |
| Engine Specifications | |
| Primary Engine | |
| Engine 1 Name: | 2.4L Power-Tech DOHC Inline-4 |
| Engine 1 Displacement: | 2429 cc (148.2 cubic inches) |
| Engine 1 Bore X Stroke: | 90.0 mm x 94.5 mm (3.54 in x 3.72 in) |
| Engine 1 Compression Ratio: | 9.5:1 |
| Engine 1 Horsepower: | 150 hp @ 5200 rpm |
| Engine 1 Torque: | 165 lb-ft @ 4000 rpm |
| Secondary Engine | |
| Engine 2 Name: | 3.7L Power-Tech SOHC V6 |
| Engine 2 Displacement: | 3701 cc (225.9 cubic inches) |
| Engine 2 Bore X Stroke: | 93.0 mm x 90.9 mm (3.66 in x 3.58 in) |
| Engine 2 Compression Ratio: | 9.0:1 |
| Engine 2 Horsepower: | 210 hp @ 5200 rpm |
| Engine 2 Torque: | 235 lb-ft @ 4000 rpm |
| Fuel System | |
| Fuel Delivery: | Multi-point fuel injection (MPFI) |
| Fuel Type: | Unleaded gasoline |
| Transmission | |
| Standard | |
| Transmission Type 2 4L: | 5-speed Manual (NV1500) |
| Optional | |
| Transmission Type 3 7L: | 4-speed Automatic (42LE / 45RFE) |
| Features | |
| Transfer Case Options: | Command-Trac NV231 (Part-time 2WD/4WD) or Select-Trac NV244 (Full-time 4WD with Selec-Trac II) |
| Automatic Transmission Fluid Spec: | ATF+4 (Mopar Material Number 05013457GA) |
| Manual Transmission Fluid Spec: | API GL-4, SAE 75W-90 synthetic manual transmission lubricant |
| Dimensions | |
| Exterior | |
| Wheelbase: | 2644 mm (104.1 inches) |
| Length: | 4415 mm (173.8 inches) |
| Width: | 1839 mm (72.4 inches) |
| Height: | 1806 mm (71.1 inches) |
| Weights | |
| Curb Weight 2 4L: | 1770 kg (3902 lbs) |
| Curb Weight 3 7L: | 1860 kg (4100 lbs) |
| Gross Vehicle Weight Rating Gvwr: | Approx. 2313 kg (5100 lbs) |
| Safety Features | |
| Ratings | |
| NHTSA Frontal Driver Rating: | Four Stars |
| NHTSA Frontal Passenger Rating: | Four Stars |
| NHTSA Side Driver Rating: | Five Stars |
| NHTSA Side Rear Passenger Rating: | Five Stars |
| Active Features | |
| ABS: | Standard Anti-lock Braking System (ABS) |
| Traction Control: | Available Traction Control System (TCS) on some models |
| Passive Features | |
| Airbags Front: | Standard front-seat airbags |
| Airbags Side: | Available front-seat mounted side airbags |
| Seatbelts: | Three-point seat belts for all occupants, pretensioners for front seats |
| Technology Features | |
| Infotainment | |
| Audio System Options: | Standard AM/FM stereo with CD player, optional premium audio systems, Sirius satellite radio. |
| Navigation: | Optional navigation system on higher trim levels. |
| Driver Assistance | |
| Cruise Control: | Standard cruise control |
| Tire Pressure Monitoring: | Available Tire Pressure Monitoring System (TPMS) |
| Connectivity | |
| Auxiliary Input: | Available auxiliary audio input jack on some models. |
| Maintenance | |
| Service Intervals | |
| Oil Change Interval Synthetic: | 10,000 miles (16,000 km) or 12 months, whichever comes first (with synthetic oil) |
| Oil Change Interval Conventional: | 5,000 miles (8,000 km) or 6 months, whichever comes first (with conventional oil) |
| Engine Air Filter Replacement: | Every 30,000 miles (48,000 km) or as needed based on driving conditions. |
| Spark Plug Replacement 2 4L: | Approximately 100,000 miles (160,000 km) with platinum-tipped spark plugs. |
| Spark Plug Replacement 3 7L: | Approximately 100,000 miles (160,000 km) with platinum-tipped spark plugs. |
| Fluid Specifications | |
| Engine Oil Spec 2 4L: | API SN or SP, ILSAC GF-5 or GF-6, SAE 5W-30 (check owner's manual for exact specification) |
| Engine Oil Spec 3 7L: | API SN or SP, ILSAC GF-5 or GF-6, SAE 5W-30 (check owner's manual for exact specification) |
| Coolant Spec: | Mopar OAT (Organic Acid Technology) Antifreeze/Coolant 50/50 mix (MS-9769) |
| Brake Fluid Spec: | DOT 3 or DOT 4 brake fluid |
| Known Issues | |
| Common Problem 1: | Front suspension component wear (ball joints, control arm bushings, sway bar links) due to vehicle weight and typical usage. |
| Common Problem 2: | Rear differential pinion seal leaks. |
| Common Problem 3: | HVAC blower motor resistor failure leading to loss of fan speed control. |
| Common Problem 4: | Cracked exhaust manifolds on the 3.7L V6 engine. |
| Vehicle History | |
| Brand Heritage | |
| Brand Legacy: | Jeep, a marque synonymous with off-road capability and ruggedness since its World War II origins. |
| Model Evolution | |
| First Generation Start: | 2002 |
| Platform Basis: | Based on the DaimlerChrysler KJ platform, which also underpinned the Dodge Nitro later. |
| Model Year Update 2003: | 2003 saw minor updates and continued availability of the 2.4L and 3.7L engines. |
| Production | |
| Manufacturing Plant: | Toledo South Assembly Plant, Toledo, Ohio, USA |
| Awards & Recognition | |
| Recognitions | |
| Off Road Capability: | Consistently praised for its off-road prowess within its compact SUV segment, a hallmark of the Jeep brand. |
| Initial Reception: | Received mixed reviews upon introduction, with praise for capability and criticism for on-road refinement compared to car-based SUVs. |