GM Service Manual Online
For 1990-2009 cars only

Fan Replacement LH2

Tools Required

J 41240 Fan Clutch Remove and Installer

Removal Procedure


    Object Number: 1442452  Size: SH
  1. Remove the air cleaner intake duct. Refer to Air Cleaner Outlet Duct Replacement .
  2. Important: 

       • The fan nut has left hand (reverse) threads.
       • Do not completely remove the fan from the crank adapter shaft.

  3. Loosen the fan nut from the crank adapter shaft using J 41240 .
  4. Remove the fan shroud. Refer to Engine Coolant Fan Shroud Replacement .
  5. Continue to loosen the fan nut and disconnect the fan from the crank adapter shaft.
  6. Remove the fan from the vehicle.

Installation Procedure


    Object Number: 1442452  Size: SH

    Important: The fan nut has left hand (reverse) threads.

  1. Install the fan to the vehicle.
  2. Connect the fan to the crank adapter shaft.
  3. Install the fan shroud. Refer to Engine Coolant Fan Shroud Replacement .
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Tighten the fan nut to the crank adapter shaft using J 41240 .
  6. Tighten
    Tighten the nut to 100 N·m (74 lb ft).

  7. Install the air cleaner intake duct. Refer to Air Cleaner Outlet Duct Replacement .

Fan Replacement LY7

Tools Required

J 41240 Fan Clutch Wrench

Removal Procedure


    Object Number: 1372869  Size: SH
  1. Remove the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement .
  2. Loosen the fan nut from the crank adapter shaft using J 41240 .
  3. Remove the fan from the vehicle.

Installation Procedure


    Object Number: 1372869  Size: SH
  1. Install the fan to the vehicle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Tighten the fan nut to the crank adapter shaft using J 41240 .
  4. Tighten
    Tighten the nut to 100 N·m (74 lb ft).

  5. Install the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement .