Cooling Fan - Installation

5.7L AND 3.0L DIESEL










CAUTION: There is an external ground wire connected to the hydraulic fan drive located at the electrical connector on the fan assembly. This ground MUST remain connected at all times. Failure to ensure ground wire is connected when engine is operating can cause severe damage to the JTEC module.

1. Position fan drive and shroud in vehicle.
2. Install fan shroud upper mounting bolts. Do not tighten at this time.
3. Install radiator upper hose onto radiator.
4. Connect power steering cooler hoses.
5. Raise vehicle on hoist.
6. Install fan shroud lower mounting bolts. Tighten to 6 Nm (50 in. lbs.).

NOTE: When ever the high pressure line fittings are removed from the hydraulic fan drive the O-rings located on the fittings must be replaced.

7. Lubricate the O-rings on the fittings with power steering fluid then connect inlet and outlet high pressure lines to fan drive. Tighten inlet line to 49 Nm (36 ft. lbs.) tighten outlet line to 29 Nm (22 ft. lbs.).
8. Connect low pressure return hose to fan drive.
9. Lower vehicle.
10. Install radiator upper hose.
11. Connect electrical connector for hydraulic fan control solenoid.
12. Tighten fan shroud upper mounting bolts to 6 Nm (50 in. lbs.).
13. Refill cooling system Service and Repair.

CAUTION: Do not run engine with power steering fluid below the full mark in the reservoir. Severe damage to the hydraulic cooling fan or the engine can occur.

14. Refill power steering fluid reservoir and bleed air from steering system Power Steering System Bleeding.
15. Run engine and check for leaks.