Engine Cooling Fans: Description

Wranglers are equipped with a mechanical temperature controlled fan. The viscous fan drive is a torque and temperature-sensitive clutch unit. It automatically increases or decreases fan speed to provide proper engine cooling. See Fig 1 and Fig 2 .

Fig 1: Identifying Water Pump Mounted Cooling Fan Components (2.5L)

Courtesy of DAIMLERCHRYSLER CORP.

Fig 2: Identifying Water Pump Mounted Fan Drive (4.0L)

Courtesy of CHRYSLER CORP.