Wrangler 4WD V6-3.8L (2009): Engine, Cooling and Exhaust
Also for this vehicle: Wrangler 2WD V6-3.8L (2008), Wrangler 4WD L4-150 2.5L VIN P MFI (1998), Wrangler L4-150 2.5L VIN E TBI (1990), Wrangler L4-150 2.5L VIN H TBI (1986), Wrangler L4-150 2.5L VIN P MFI (1993), Wrangler L4-2.4L VIN 1 (2006), Wrangler L4-2.5L VIN P (1999), Wrangler L6-242 4.0L VIN S MFI (1991), Wrangler L6-258 4.2L VIN C 2-bbl (1988), Wrangler L6-258 4.2L VIN M 2-bbl (1989), Wrangler L6-4.0L VIN S (2000).
Diagnostics
Maintenance
Engine
Transmission
Brakes
Electrical
Steering & suspension
Heating & A/C
Body & interior
Choose Sections to see everything in a chapter, or a chapter title to start at its first page.
Engine215 pages
- Compression Check › System Information › Specifications2
Camshaft, Lifters and Push Rods21 pages
- Camshaft Gear/Sprocket › Component Information › Specifications
Camshaft, Engine › Component Information6 pages
Lifter / Lash Adjuster, Valve › Component Information5 pages
- Push Rod › Component Information › Description and Operation › Push Rod - Description2
Rocker Arm Assembly › Component Information7 pages
Cylinder Block Assembly48 pages
- Connecting Rod Bearing › Component Information › Specifications23
Connecting Rod, Engine › Component Information10 pages
Crankshaft Main Bearing › Component Information5 pages
- Crankshaft Seal Retainer › Component Information › Service and Repair › Crankshaft Rear Oil Seal Retainer - Removal2
Crankshaft, Engine › Component Information7 pages
Engine Block Heater › Component Information4 pages
Harmonic Balancer - Crankshaft Pulley › Component Information3 pages
Piston, Engine › Component Information10 pages
Piston Ring, Engine › Component Information4 pages
Cylinder Head Assembly28 pages
- Fuel Pressure Release › System Information › Service and Repair
Rocker Arm Assembly › Component Information7 pages
Valve Cover › Component Information6 pages
Valve Spring › Component Information7 pages
Valve, Intake/Exhaust › Component Information7 pages
Drive Belts, Mounts, Brackets and Accessories13 pages
Drive Belt › Component Information5 pages
Drive Belt Tensioner › Component Information4 pages
- Engine Mount › Component Information › Service and Repair › Engine Mount Insulator - Removal234
Engine Lubrication26 pages
- Engine Oil Pressure › Component Information › Specifications2
Engine Oil › Component Information6 pages
- Oil Filter, Engine › Component Information › Service and Repair › Procedures2
Oil Pan, Engine › Component Information5 pages
- Oil Pressure Sender › Component Information › Diagrams
Oil Pressure Switch (For Fuel Pump) › Component Information4 pages
- Oil Pressure Warning Lamp/Indicator › Component Information › Description and Operation › Low Oil Pressure Indicator - Description2
- Lamps and Indicators - Engine › Oil Pressure Warning Lamp/Indicator › Component Information › Description and Operation › Low Oil Pressure Indicator - Description2
Sensors and Switches - Engine5 pages
- Oil Pressure Sender › Component Information › Diagrams
Oil Pressure Switch (For Fuel Pump) › Component Information4 pages
Timing Components20 pages
Tune-up and Engine Performance Checks23 pages
- Air Cleaner Housing › Air Filter Element › Component Information › Service and Repair › Air Cleaner - Removal2
- Fuel Filter › Fuel Pressure Release › System Information › Service and Repair
- Firing Order › Component Information › Specifications
- Ignition Cable › Component Information › Specifications2
Spark Plug › Component Information4 pages
- Compression Check › System Information › Specifications2
Water Pump › Component Information9 pages
Cooling System73 pages
Coolant Reservoir › Component Information4 pages
- Engine - Coolant Temperature Sensor/Switch › Coolant Temperature Sensor/Switch (For Computer) › Component Information › Diagrams
Heater Core › Component Information4 pages
Radiator › Component Information6 pages
Radiator Cap › Component Information6 pages
Relays and Modules - Cooling System4 pages
- Radiator Cooling Fan Control Module › Component Information › Diagrams
Radiator Cooling Fan Motor Relay › Component Information3 pages
- Sensors and Switches - Cooling System › Engine - Coolant Temperature Sensor/Switch › Coolant Temperature Sensor/Switch (For Computer) › Component Information › Diagrams
- Temperature Gauge › Component Information › Description and Operation › Temperature Gauge - Description2
- Temperature Warning Lamp/Indicator, Engine Cooling › Component Information › Description and Operation › Engine Temperature Lamp - Description2
Thermostat, Engine Cooling › Component Information4 pages
Water Pump › Component Information9 pages
Exhaust System18 pages
- Catalytic Converter › Component Information › Service and Repair › Catalytic Converter - Removal2
Exhaust Manifold › Component Information6 pages
Exhaust Pipe › Component Information4 pages
Heat Shield, Exhaust › Component Information3 pages
Muffler › Component Information3 pages