GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 41240 Fan Clutch Wrench

  1. Remove the upper fan shroud. Refer to Fan Shroud Replacement .
  2. Important: To maintain a balanced fan assembly, align the yellow paint mark on the fan clutch hub with the yellow paint mark on the water pump hub.


    Object Number: 42910  Size: SH
  3. Remove the fan clutch from the coolant pump using J 41240 .
  4. 2.1. Install the J 41240 -1 into the water pump access holes.
    2.2. With the J 41240 -2 secure on the fan clutch nut, hold the J 41240 -1 firmly in place while turning the J 41240 -2 counter-clockwise.
  5. Remove the fan and the fan clutch as an assembly.

  6. Object Number: 42877  Size: SH
  7. Remove the fan to fan clutch mounting bolts.
  8. Remove the fan from the clutch.

Installation Procedure


    Object Number: 42877  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Install the fan to the fan clutch mounting bolts.
  2. Tighten
    Tighten the mounting bolts to 33 N·m (24 lb ft).


    Object Number: 42910  Size: SH
  3. Install the fan clutch to the coolant pump pulley using the J 41240 .
  4. Install the upper fan shroud. Refer to Fan Shroud Replacement .