Removal & Installation
The purpose of the electro-viscous (EV) fan clutch is to maintain powertrain cooling requirements. The control module monitors sensors to regulate the fan speed.
- Disconnect the negative battery cable.
- Remove the cooling fan and shroud.
- Remove the push-pin and release the fan clutch electrical connector from the fan shroud.
- Remove the fan clutch from the fan shroud.
- Remove the bolts retaining the fan blade to the fan clutch.
Separate the fan blade from the fan clutch.
- Assemble the fan blade to the fan clutch.
- Install the 4 bolts to the fan blade and tighten them to 20 ft. lbs. (27 Nm).
- Install the fan clutch to the fan shroud.
- Install the push-pin to the fan clutch electrical connector.
- Install the cooling fan and shroud.
- Connect the negative battery cable.
- While the engine is cold, visually inspect the fan blades and replace if there are any signs of damage or cracking.
- Inspect the fan blade for 1 / 4 or less wobble play and if the amount of play is more than 1 / 4 , replace the fan clutch.
- Inspect the fan clutch for leaks and replace if leaking is found. Also check for proper tightness on the water pump.
- Rotate the fan blades and check for resistance. A cold engine should have less resistance than a warm engine.
- Operate the vehicle until the engine warms up, then shut it off.
- Rotate the fan blades and check for resistance. The rotating resistance should be more now that the engine has warmed up.
- Replace the fan clutch if it fails this test.