Installation

5.9L/6.7L DIESEL





NOTE: Viscous Fan Drive Fluid Pump Out Requirement: After installing a new viscous fan drive, bring the engine speed up to approximately 2000 rpm and hold for approximately two minutes. This will ensure proper fluid distribution within the drive.

1. Install fan blade assembly to electrically controlled viscous fan drive. Tighten mounting bolts to 24 Nm (18 ft. lbs.) torque.
2. Loosen both upper engine mounted fan shroud brackets.
3. Make sure lower engine mounted fan shroud bracket bolts are tightened to 24 Nm (18 ft. lbs.).
4. Position fan/fan drive assembly inside fan shroud and lower into position.
5. Install the viscous fan drive assembly onto fan pulley hub shaft. Tighten mounting nut to 115 Nm (85 ft. lbs.) torque.
6. Install fan drive wire harness support to fan shroud.
7. Install viscous fan wiring bracket onto lower fan shroud bracket. Tighten nut to 14 Nm (11 ft. lbs.).
8. Install fan shroud onto fan shroud brackets.
9. Connect fan drive wire harness.




10. Install fan shroud to upper engine fan shroud brackets. Tighten nut finger tight.
11. Tighten upper engine fan shroud bracket bolts to 24 Nm (18 ft. lbs.).
12. Tighten four fan shroud bracket nuts to 24 Nm (18 ft. lbs.).
13. Make sure of fan tip clearance all the way around inside of fan shroud.
14. Connect the battery negative cables.