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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 1885 (6.7L Cooling System - 2500HD & 3500HD) >> Fan, Cooling, Viscous >> Removal And Installation

Removal And Installation

WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

REMOVAL 

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. Disconnect and isolate the negative battery cable(s). Refer to STANDARD PROCEDURE .
  2. Remove the air cleaner body. Refer to BODY, AIR CLEANER, REMOVAL AND INSTALLATION, 6.7L .
  3. Remove the clean air hose. Refer to HOSE, CLEAN AIR, REMOVAL AND INSTALLATION, 6.7L .
    GC0184952Courtesy of CHRYSLER GROUP, LLC
  4. Detach the A/C line retainer (1) and the wire harness retainer (2) from the fan shroud.
    GC0185089Courtesy of CHRYSLER GROUP, LLC
  5. Remove the left fan shroud bolt (1).
    GC0185967Courtesy of CHRYSLER GROUP, LLC
  6. Remove the right fan shroud bolt (1).
    GC0185911Courtesy of CHRYSLER GROUP, LLC
  7. Release the right lower fan shroud tab (1).
    GC0185937Courtesy of CHRYSLER GROUP, LLC
  8. Release the tab (1) and remove the fan shroud (2).
    GC0155266Courtesy of CHRYSLER GROUP, LLC
  9. Disconnect the electronically controlled viscous fan wire harness connector (2).
  10. Remove push pin retainer (1) securing the fan drive wire harness from support bracket.
    GC0185571Courtesy of CHRYSLER GROUP, LLC
  11. The electronically controlled viscous fan drive/fan blade assembly is attached (threaded) to the fan pulley shaft. Threads on the viscous fan drive are RIGHT-HAND.  Using a commercially available 48 MM fan wrench (1) and (special tool #6958, Wrench, Spanner) and (special tool #8346, Pins, Adapter) (2), remove the fan blade/fan drive assembly from fan pulley by turning the mounting nut counterclockwise (as viewed from front).
    GC0155302Courtesy of CHRYSLER GROUP, LLC
  12. Disconnect the wire harness connector (2) and remove the bracket (1) from the fan hub (3).
    GC0155327Courtesy of CHRYSLER GROUP, LLC
    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 nuts (2) from the viscous fan drive (1).
  14. Inspect the fan for cracked, chipped, or damaged fan blades (1).
  15. If necessary, remove the serpentine belt. Refer to BELT, SERPENTINE, REMOVAL AND INSTALLATION, 6.7L .
    GC0185860Courtesy of CHRYSLER GROUP, LLC
  16. If necessary, remove the bolts (1) and the fan drive pulley (2).
    GC0184779Courtesy of CHRYSLER GROUP, LLC
  17. If necessary, remove the bolts (1) and the fan drive hub (2).

INSTALLATION 

GC0184779Courtesy of CHRYSLER GROUP, LLC
  1. If removed, install the fan drive (2) and tighten the bolts (1) to the proper torque specification. Refer to TORQUE SPECIFICATIONS  .
    GC0185860Courtesy of CHRYSLER GROUP, LLC
  2. If removed, install the fan drive pulley (1) and tighten the bolts (2) to the proper torque specification. Refer to TORQUE SPECIFICATIONS  .
    CAUTION:

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

  3. If remove, Install the serpentine belt. Refer to BELT, SERPENTINE, REMOVAL AND INSTALLATION, 6.7L .
    GC0155327Courtesy of CHRYSLER GROUP, LLC
  4. Install the fan blade assembly (3) to the electrically controlled viscous fan drive (1) and tighten the nuts (2) to the proper torque specification. Refer to TORQUE SPECIFICATIONS  .
    GC0155302Courtesy of CHRYSLER GROUP, LLC
  5. Install the bracket (1) onto the fan hub (3) and connect wire harness connector (2).
    GC0185571Courtesy of CHRYSLER GROUP, LLC
  6. Install the fan blade/fan drive assembly to the fan drive pulley by turning the mounting nut clockwise (as viewed from front). The threads on the viscous fan drive are RIGHT-HAND  Using a commercially available 48 MM fan wrench (1) and (special tool #6958, Wrench, Spanner) (2) and (special tool #8346, Pins, Adapter) (2) tighten the mounting nut to the proper torque specification. Refer to TORQUE SPECIFICATIONS  .
    GC0155266Courtesy of CHRYSLER GROUP, LLC
  7. Position and connect the fan drive wire harness connector (2) and install support retainer (1).
    GC0185937Courtesy of CHRYSLER GROUP, LLC
  8. Install the fan shroud (2) and engage the two lower lock tab (1).
    GC0185911Courtesy of CHRYSLER GROUP, LLC
  9. Engage the right lower fan shroud tab (1).
    GC0185967Courtesy of CHRYSLER GROUP, LLC
  10. Install the right fan shroud bolt (1) and tighten to the proper torque specification. Refer to TORQUE SPECIFICATIONS  .
    GC0185089Courtesy of CHRYSLER GROUP, LLC
  11. Install the left fan shroud bolt (1) and tighten to the proper torque specification. Refer to TORQUE SPECIFICATIONS  .
    GC0184952Courtesy of CHRYSLER GROUP, LLC
  12. Attach the A/C line retainer (1) and the wire harness retainer (2) from the fan shroud.
  13. Install the clean air hose. Refer to HOSE, CLEAN AIR, REMOVAL AND INSTALLATION, 6.7L .
  14. Install the air cleaner body. Refer to BODY, AIR CLEANER, REMOVAL AND INSTALLATION, 6.7L .
  15. Connect the negative battery cable(s). Refer to STANDARD PROCEDURE .
    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.

  16. Start the vehicle and check for proper clearance between the fan blade assembly and the fan shroud.
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