GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2001 🢒 Intrigue 🢒 Engine 🢒 Engine Electrical 🢒 Engine Coolant Fan Replacement

Removal Procedure

    Caution: Keep hands, tools, and clothing away from the electric engine coolant fans in order to help prevent personal injury. These fans are electric and can turn on whether or not the engine is running. The fans can start automatically with the ignition in the ON position.

  1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the engine mount strut. Refer to Engine Mount Strut Replacement in Engine Mechanical - 3.5L.

    3. Object Number: 308948 Size: SH
  3. Disconnect the cooling fan wiring harness from the engine wiring harness.
  4. Reposition the wiring harness at the upper radiator support.
  5. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.5L.

    6. Object Number: 308978 Size: SH
  6. Remove the cooling fan shroud bolts.
  7. Remove the LH radiator bracket.
  8. Remove the cooling fan shroud with the electric cooling fan motors and cooling fan.

    9. Object Number: 308945 Size: SH
  9. Disconnect the cooling fan wiring harness from each cooling fan motor.

    10. Object Number: 308979 Size: SH
  10. Remove the cooling fan heat shield.

    11. Object Number: 381377 Size: SH
  11. Remove the cooling fan blade nut(s).
  12. Remove the cooling fan blade(s).
  13. Inspect the cooling fan(s) for the following conditions:
    14. 13.1. Bent or cracked cooling fan blades
    13.2. Smoothness of the cooling fan blade mating surfaces
    13.3. Remove burrs or other imperfections as necessary

Installation Procedure

    Object Number: 381377 Size: SH
  1. Install the cooling fan blade(s).

    2. 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.

  2. Install the cooling fan blade nut(s).

    3. Tighten
    Tighten the cooling fan nut to 6 N·m (53 lb in).


    Object Number: 308979 Size: SH
  3. Connect the cooling fan heat shield.

    4. Object Number: 308945 Size: SH
  4. Connect the cooling fan wiring harness to each cooling fan motor.

    5. Object Number: 308978 Size: SH
  5. Install the cooling fan shroud with the electric cooling fan motors and cooling fans.
  6. Install the LH radiator bracket and bolt.

    7. Tighten
    Tighten the radiator bracket bolt to 10 N·m (89 lb in).

  7. Connect the cooling fan shroud bolts.

    8. Tighten
    Tighten the cooling fan shroud bolts to 6 N·m (53 lb in).

  8. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.5L.
  9. Install the wiring harness at the upper radiator support.

    10. Object Number: 368749 Size: SH
  10. Connect the cooling fan wiring harness to the engine wiring harness.
  11. Install the engine mount strut bracket to the upper radiator support. Refer to Engine Mount Strut Replacement in Engine Mechanical - 3.5L.
  12. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.