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Jeep Wrangler CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Jeep REPAIR SHOPS DON'T WANT YOU TO KNOW
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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about Jeep Wrangler car and truck
repair procedures including Jeep engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your Jeep Wrangler automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR Jeep Wrangler AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported Jeep Wrangler cars and light trucks from 1990+
Cooling Fans -> Light Trucks & Vans -> Diagnosis & Testing -> Accessing Diagnostic Trouble Codes (DTCs) -> Caravan, Town & Country & Voyager -> Clearing Diagnostic Trouble Codes (DTCs) -> Dakota & Durango -> Fan Control Relay -> Fan Motor -> Fan Motor Circuit -> Grand Cherokee -> Liberty -> Pacifica -> PT Cruiser
Vehicle: 2003 Jeep Wrangler Rubicon 4.0 L6 GAS
Fan Motor
Caravan, Town & Country & Voyager
Refer to Fig. , for fan motor diagnosis chart.
Fan Motor Circuit
All models are equipped with an engine controller which will detect and store a diagnostic trouble code for the cooling fan system. This information may be accessed by using a DRB diagnostic tool.
Accessing Diagnostic Trouble Codes (DTCs)
Connect suitable DRB lll scan tool to Data Link Connector (DLC), follow manufacturers instructions to access diagnostic trouble codes and procedures.
Clearing Diagnostic Trouble Code...
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BRAKE SERVICE PROCEDURES FOR Jeep Wrangler AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Jeep Wrangler cars and light trucks from 1990+.
Anti-lock Brakes -> Jeep -> Precautions -> Brake System Pressure Relief -> General Service Precautions
Vehicle: 2001 Jeep Wrangler 2.5 L4 GAS
Brake System Pressure Relief
The normal working pressure of the Anti-Lock Brake System (ABS) is 1600-2100 psi. System pressure must be released prior to servicing any system component. Failure to reduce system pressure will result in personal injury. Release ABS system pressure as follows:
- Turn ignition switch to Off position.
- Apply brakes 45-50 times (until pedal is firm) to reduce system pressure.
General Service Precautions
Obs...
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FUEL FILTER REPLACEMENT PROCEDURES FOR Jeep Wrangler AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported Jeep Wrangler cars and light trucks sold in the U.S. for 1980+.
DaimlerChrysler Corp./Jeep Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> Wrangler, 1997-98 Grand Cherokee & 1997-01 Cherokee
Vehicle: 2005 Jeep Wrangler Unlimited 4.0 L6 GAS
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.
Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.
After the battery has bee...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR Jeep Wrangler AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported Jeep Wrangler cars and light trucks from 1990+.
DRIVESHAFT U-JOINT, Replace
Vehicle: 2009 Jeep Wrangler Unlimited Rubicon 3.8 V6 GAS
Clamp only the narrow forged portion of the yoke in the vise. Failure to heed caution may result in damage.
- Remove axle shaft.
- Remove bearing cap retaining snap rings. Saturate the bearing caps with penetrating oil prior to removal.
- Place socket (receiver) with inside diameter larger than bearing cap against yoke and perimeter of bearing cap to be removed.
- Pla...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR Jeep Wrangler AUTOMOBILES
Description, component locations, reset procedures, relearn procedures, diagnosis and testing, wiring diagrams, component replacement, and identification of vehicles equipped and not equipped with tire pressure monitoring system for most domestic and imported Jeep Wrangler cars and light trucks sold in the U.S. from mid 1990's+.
Relearn Procedures
Vehicle: 2008 Jeep Wrangler Rubicon 3.8 V6 GAS
When a tire pressure sensor has been replaced, the WCM will learn and store the sensor ID when the vehicle is driven continuously above 15 mph for 10 minutes. A new sensor ID can also be programmed directly into the WCM using a suitably ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR Jeep Wrangler AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported Jeep Wrangler cars and light trucks from 1990+.
Starter, Replace
Vehicle: 2008 Jeep Wrangler Sahara 3.8 V6 GAS
- Disconnect battery ground cable.
- Raise and support vehicle.
- While supporting starter motor, remove bolts securing starter motor to transmission.
- Move starter motor towards front of vehicle far enough for nose of starter pinion housing to clear housing. Do not let starter motor hang from wire harness.
- Lower starter motor far enough to access and remove nut that secu...
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MAINTENANCE LAMP RESET PROCEDURES FOR Jeep Wrangler AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported Jeep Wrangler cars and light trucks sold in the U.S. from 1990+.
Chrysler LLC Trucks -> EGR System Malfunction Indicator Lamp -> 1993-94 w/California Emissions & 1995-2001
Vehicle: 1993 Jeep Wrangler Renegade 4.0 L6 GAS
The Powertrain Control Module (PCM) performs an On-Board Diagnostic (OBD) inspection of the EGR system on all California Vehicles. The diagnostic system uses the electronic EGR Transducer (EET) for the system tests.
The OBD inspection activates only during selected engine/driving conditions. When the conditions are met, the PCM energizes the EET solenoid to disable the EGR. The PCM inspects for a change in the oxygen sensor signal. If the air/fuel mixture goes lean, the PCM will attempt t...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR Jeep Wrangler AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported Jeep Wrangler cars and light trucks from 1990+
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2003 Jeep Wrangler Rubicon 4.0 L6 GAS
Lower
- Drain cooling system into a suitable container.
- Reposition hose clamp from radiator.
- Remove radiator outlet hose from radiator.
- Reposition hose clamp from water pump.
- Remove radiator outlet hose from water pump and from vehicle.
- Reverse procedure to in...
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SERPENTINE BELT SERVICE PROCEDURES FOR Jeep Wrangler AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported Jeep Wrangler cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 2006 Jeep Wrangler Unlimited Rubicon 4.0 L6 GAS
Belt tension is adjusted at the power steering pump or idler pulley if not equipped with power steering.
- Loosen power steering or idler pulley rear mounting bolts.
- Loosen power steering pump ...
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COMPONENT LOCATION DIAGRAMS FOR Jeep Wrangler AUTOMOBILES
Component location diagrams for most Jeep Wrangler cars and light trucks sold in the U.S. from 1990+.
 Instrument Panel Components Diagram for 1994 Jeep Wrangler Sahara 4.0 L6 GASComponents on diagram: |
 Engine Components Diagram for 2002 Jeep Wrangler X 4.0 L6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR Jeep Wrangler AUTOMOBILES
OEM drawn wiring diagrams for most Jeep Wrangler cars and light trucks sold in the U.S.
 2007 Jeep Wrangler Sahara 3.8 V6 GAS Wiring DiagramComponents on diagram: |
 2004 Jeep Wrangler Sport 4.0 L6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR Jeep Wrangler AUTOMOBILES
OEM TSB listings for most Jeep Wrangler cars and light trucks sold in the U.S. from 1985+.
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Document: DRIVEABILITY COMPLAINTS - COLD ENG (4.2L W/BBD CARB) Vehicle: 1988 Jeep Wrangler Sahara 4.2 L6 GAS Symptoms: |
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Document: DISTRIBUTOR CAP/ROTOR/BASE - NEW P/N's (1.7/2.0L) Vehicle: 1988 Jeep Wrangler Laredo 4.2 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR Jeep Wrangler AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most Jeep Wrangler cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most Jeep Wrangler cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most Jeep Wrangler cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most Jeep Wrangler cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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