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HOMESERVICE MANUALSJEEP2009WRANGLER 4WD V6-3.8LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTCOOLING SYSTEMDESCRIPTION AND OPERATIONCOOLING SYSTEM - DESCRIPTION
2009 Jeep Wrangler 4WD V6-3.8L

Cooling System - Description

2009 Jeep Wrangler 4WD V6-3.8LSECTION Cooling System - Description





DESCRIPTION

The cooling system regulates engine operating temperature. It allows the engine to reach normal operating temperature as quickly as possible, maintains normal operating temperature and prevents overheating.

The cooling system also provides a means of heating the passenger compartment and cooling the automatic transmission fluid. The cooling system is pressurized and uses a centrifugal water pump to circulate coolant throughout the system.

COOLING SYSTEM COMPONENTS

The cooling system consists of:

- Charge Air Cooler (Diesel engine)
- 2 Speed Electric Cooling Fan
- Mechanical fan drive (Diesel engine)
- Aluminum-core radiator with plastic side tanks
- Pressurized coolant recovery container (Diesel engine)
- Ambient coolant recovery container (Gas engine)
- Water pump
- Combination A/C condenser/transmission oil cooler (automatic transmission)
- Thermostat
- Hoses and hose clamps

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.