4.0L Engine

The cooling system is designed to maintain engine temperature at an efficient level during all engine operating conditions.

Fig 1: Identifying Coolant Circulation - 4.0L

Courtesy of DAIMLERCHRYSLER CORP.

The components of the cooling system are:

• A heavy duty radiator
• Cooling fan (mechanical)
• Thermal viscous fan drive
• Fan shroud
• Radiator pressure cap
• Thermostat
• Coolant reserve/overflow system
• Automatic transmission oil cooler (internal to radiator)
• Coolant
• Water pump
• Coolant hoses and clamps