FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.
Home >> Dodge or Ram Truck >> 2012 >> RAM 2500 Truck 2WD L6-6.7L DSL Turbo High Output >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Cooling System >> Radiator Cooling Fan >> Fan Clutch >> Service and Repair >> Removal and Replacement >> Viscous Radiator Fan Clutch - Removal

Viscous Radiator Fan Clutch - Removal






6.7L DIESEL






CAUTION: If the electronically controlled viscous fan drive is replaced because of mechanical damage, the cooling fan blades should also be inspected. Inspect for fatigue cracks, or chipped blades that could have resulted from excessive vibration. Replace fan blade assembly if any of these conditions are found. Also inspect wiring harness and connectors for damage.

1. Remove the upper radiator shroud (1).
2. Disconnect and isolate the battery negative cable.
3. If equipped, disconnect and isolate the negative battery cable from the auxiliary battery.





4. Disconnect the electronically controlled viscous fan electrical connector (2) at the fan shroud.
5. Remove and re-position the fan drive wire harness support (1) from the fan shroud.
6. Remove the two fan shroud-to-radiator shroud mounting bolts (3) located on the driver side of the vehicle.





7. Remove the fan shroud-to-radiator shroud mounting bolt (2) located on the passenger side of the vehicle.
8. Remove the fan shroud-to-lower radiator shroud push pins.






CAUTION: Do not remove the fan pulley bolts. This pulley is under spring tension.

9. The electronically controlled viscous fan drive/fan blade assembly is attached (threaded) to the fan pulley shaft. Remove the fan blade/fan drive assembly from fan pulley by turning the mounting nut counterclockwise (as viewed from front). Threads on the viscous fan drive are RIGHT-HAND. A 36 MM Fan Wrench can be used. Place a bar or screwdriver between the fan pulley bolts to prevent pulley from rotating.
10. Disengage the fan shroud lower retaining clips.
11. Collapse fan shroud toward front of vehicle and remove fan drive/fan blade and fan shroud as an assembly.
12. Remove the electrical connector bracket (2) by disengaging the retainer clip and sliding the connector bracket (2) out of the fan shroud (1).






CAUTION: The electronically controlled viscous fan drive is vibration and impact sensitive, especially at the electrical connectors. Do not drop the unit.

13. Remove the four fan blade mounting bolts (2) from the viscous fan drive (3).
14. Inspect the fan for cracked, chipped or damaged fan blades (1).

pro multis Credits:Operation CHARM About Operation CHARM