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2008 Jeep Wrangler CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Jeep REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- Brake Service
- Driveline, U-Joint & CV Axles Replacement
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
BRAKE SERVICE PROCEDURES FOR 2008 Jeep Wrangler AUTOMOBILES
Disc Brakes -> Tightening Specifications
Vehicle: 2008 Jeep Wrangler Unlimited X 3.8 V6 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2008 Jeep Wrangler AUTOMOBILES
DRIVESHAFT, Replace -> Front -> Rear
Vehicle: 2008 Jeep Wrangler Rubicon 3.8 V6 GAS
Front
- With vehicle in neutral, position vehicle on hoist.
- Remove skid plate if equipped to gain access to propeller shaft.
- Mark a line across axle pinion flange, propeller shaft, flange yoke and transfer case for installation reference.
- Remove U-joint strap bolts at pinion shaft yoke.
- Remove transfer case yoke bolts.
- Push rear of propeller shaft forward to clear transfer case yoke.
- Remove propeller shaft from vehicle.
- Reverse procedure to install, noting the following:
- Align reference marks.
- Torque U-joint strap bolts to 14 ft. lbs.
- Torque tran...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2008 Jeep Wrangler AUTOMOBILES
Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Trouble Code Identification -> Intermittent & Poor Connections -> Intermittents -> Low Pressure -> Poor Connections -> System Fault -> TPMS Check
Vehicle: 2008 Jeep Wrangler Unlimited X 3.8 V6 GAS
Accessing Diagnostic Trouble Codes
Connect a suitably programmed scan tool to DLC (Data Link Connector) and follow manufacturer's instructions.
Diagnostic Trouble Code Identification
Refer to Fig. for diagnostic trouble code identification.
Clearing Diagnostic Trouble Codes
Connect a suitably programmed scan tool to DLC (Data Link Connector), and follow manufacturer's instructions.
TPMS Check
When diagnosing a TPMS problem, first check the TPMS indicator lamp with ignition switch in the On position. From the Off position, turn the ignition key to On and check the TPMS indicator la...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2008 Jeep Wrangler AUTOMOBILES
Alternator, Replace
Vehicle: 2008 Jeep Wrangler Unlimited Sahara 3.8 V6 GAS
- Disconnect battery ground cable.
- Remove alternator drive belt.
- Remove alternator mounting bolts and nut.
- Unsnap plastic insulator cap from B+ output terminal.
- Remove B+ terminal nut and terminal.
- Disconnect field wire connec...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2008 Jeep Wrangler AUTOMOBILES
Chrysler LLC Trucks -> Anti-Lock Brake System Warning Lamp -> Jeep
Vehicle: 2008 Jeep Wrangler Unlimited Rubicon 3.8 V6 GAS
Red and yellow indicator lamps are used to warn of system faults. The red lamp warns of such faults as low brake fluid level, parking brake On, system pressure differential and other system faults. The red indicator lamp should light for approximately two seconds during engine starting and should go off, unless parking brake is applied or a problem in the brake system exist. The red indicator lamp should reset after repairs to system have been completed and system has returned to normal o...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2008 Jeep Wrangler AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2008 Jeep Wrangler Unlimited Sahara 3.8 V6 GAS
Lower
- Raise and support vehicle.
- Drain cooling system into a suitable container.
- Reposition hose clamp from radiator.
- Remove radiator outlet hose from radiator.
- Reposition hose clamp from water inlet tube.
- Remove radiator outlet hose from water inlet tube and from vehicle.
- Reve...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2008 Jeep Wrangler AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2008 Jeep Wrangler Rubicon 3.8 V6 GAS
- Disconnect negative battery cable from battery.
- Rotate belt tensioner clockwise until it contacts its stop.
- Remove drive belt.
- Slowly ...
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COMPONENT LOCATION DIAGRAMS FOR 2008 Jeep Wrangler AUTOMOBILES
Component location diagrams for most 2008 Jeep Wrangler cars and light trucks sold in the U.S. from 1990+.
Body Components Diagram for 2008 Jeep Wrangler Sahara 3.8 V6 GAS Components on diagram: |
Body Components Diagram for 2008 Jeep Wrangler Unlimited Rubicon 3.8 V6 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 2008 Jeep Wrangler AUTOMOBILES
OEM drawn wiring diagrams for most 2008 Jeep Wrangler cars and light trucks sold in the U.S.
2008 Jeep Wrangler Unlimited Rubicon 3.8 V6 GAS Wiring Diagram Components on diagram: |
2008 Jeep Wrangler Unlimited Rubicon 3.8 V6 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2008 Jeep Wrangler AUTOMOBILES
OEM TSB listings for most 2008 Jeep Wrangler cars and light trucks sold in the U.S. from 1985+.
Document: Hard To Fill Or Fuel Nozzle Shuts Off Repeatedly Vehicle: 2008 Jeep Wrangler Sahara 3.8 V6 GAS Auto Systems: |
Document: Hard Top/Soft Top Water Leak Diagnosis Vehicle: 2008 Jeep Wrangler Sahara 3.8 V6 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2008 Jeep Wrangler AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2008 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 2008 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 2008 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 2008 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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