Home ReviewsRefund
Home/Oldsmobile/Aurora/Oldsmobile Aurora II (1999-2003)/Repair manual/Cooling Fan/Engine Cooling System: Removal & Installation
Contents Wiring diagrams Section: Cooling Fan All sections

Engine Cooling System: Removal & Installation Oldsmobile Aurora II

Cooling Fan 14 illustrations ~1094 words

Removal Procedure

WARNINGAn electric fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan.
WARNINGTo help avoid personal injury or damage to the vehicle, a bent, cracked, or damaged fan blade or housing should always be replaced.

Scheme 74

Scheme 74
Scheme 74
  1. Disconnect the battery negative cable. Refer to «BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE»(ref-175172-S37990937682005041800000)
  2. Remove the upper tie bar. Refer to «TIE BAR REPLACEMENT -- UPPER»(ref-175313-S27709910712005042000000)
  3. Disconnect the wiring harness electrical connectors from the cooling fan motors.
  4. Remove the clips attaching the wiring harness to the fan shroud.
  5. Remove the lower air deflector. Refer to «AIR DEFLECTOR REPLACEMENT -- FRONT»(ref-175313-S03656394322005042000000)
  6. Remove the transaxle oil cooler line retaining bolt and clip from the fan shroud.
  7. Lower the vehicle.
  8. Slide the plastic cap off the upper quick connect joint.
  9. Disconnect the upper transaxle oil cooler line from the radiator using the J 41623-B
  10. Remove the two fan shroud mounting bolts. Important: Care should be taken when removing the cooling fan assembly not to damage the lower attachment points of both the cooling fan assembly and radiator.
  11. Lift the cooling fan assembly off the lower mounting features of the radiator and remove from the vehicle. CAUTION: The bolt retaining the condenser to the radiator end tank is a special length and should be the ONLY bolt used upon reinstallation. The use of a longer bolt will damage the radiator end tank.
  12. Remove the fan retaining nut (5) from the motor (2).
  13. Remove the fan (4) from the motor shaft.
  14. Remove the motor retaining screws (3).
  15. Remove the motor (2) from the shroud (1).

Scheme 75

Scheme 75: Installation Procedure
Scheme 75: Installation Procedure

Scheme 76

Scheme 76
Scheme 76

Scheme 77

Scheme 77
Scheme 77

Scheme 78

Scheme 78
Scheme 78
  1. Install the motor (2) to the shroud (1). CAUTION: Refer to «FASTENER NOTICE»(ref-175132-S17785009232005041500000) .
  2. Install the motor retaining screws (3). Tighten Tighten the screws to 6 N.m (53 in lbs).
  3. Install the fan (4) to the motor shaft.
  4. Install the fan retaining nut (5) to the motor (2). Tighten Tighten the retaining nut to 6 N.m (53 in lbs). Important: Care should be taken when installing the cooling fan assembly not to damage lower attachment points of both the cooling fan assembly and radiator.
  5. Install the cooling fan assembly into position, aligning the lower feet of the shroud to the lower mounting features on the radiator. CAUTION: The bolts retaining the cooling fan to the radiator end tanks are a special length and should be the ONLY bolts used upon reinstallation. The use of longer bolts will damage the radiator end tanks.
  6. Install the cooling fan mounting bolts Tighten Tighten the bolts to 6 N.m (53 in lbs).
  7. Push the upper transaxle oil cooler line into the radiator quick connect fitting, until a "click" is heard.
  8. Tug gently on the cooler line to ensure proper retention.
  9. Slide the plastic cap (1) over the quick connect joint.
  10. Raise and support the vehicle.
  11. Install the transaxle oil cooler line retaining clip and bolt to the fan shroud. Tighten Tighten the retaining bolt to 6 N.m (53 in lbs).
  12. Install the lower air deflector. Refer to «AIR DEFLECTOR REPLACEMENT -- FRONT»(ref-175313-S03656394322005042000000) .
  13. Connect the wiring harness electrical connectors to the cooling fan motors.
  14. Attach the wiring harness retaining clips to the fan shroud.
  15. Install the upper tie bar. Refer to «TIE BAR REPLACEMENT -- UPPER»(ref-175313-S27709910712005042000000) .
  16. Connect the battery negative cable. Refer to «BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE»(ref-175172-S37990937682005041800000) .
WARNINGAn electric fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan.
WARNINGTo help avoid personal injury or damage to the vehicle, a bent, cracked, or damaged fan blade or housing should always be replaced.

Scheme 79

Scheme 79
Scheme 79

Scheme 80

Scheme 80
Scheme 80

Scheme 81

Scheme 81
Scheme 81

Scheme 82

Scheme 82
Scheme 82
  1. Disconnect the battery negative cable. Refer to «BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE»(ref-175172-S37990937682005041800000) .
  2. Remove the upper tie bar. Refer to «TIE BAR REPLACEMENT -- UPPER»(ref-175313-S27709910712005042000000) .
  3. Drain the cooling system. Refer to «Draining and Filling Cooling System»(ref-175176-S18005840362005041800000) .
  4. Using the J 37097-A (3) remove the clamp.
  5. Remove the radiator hose (2) from the radiator (1), and place aside over the engine.
  6. Remove the upper transaxle oil cooler line retaining bolt and retainer from the fan shroud.
  7. Slide the plastic cap off the quick connect joint.
  8. Disconnect the upper transaxle oil cooler line from the radiator using the J 41623-B.
  9. Disconnect the wiring harness electrical connectors (1) from the cooling fan motors.
  10. Remove the clips (2) attaching the harness to the fan shroud.
  11. Disconnect the 2 retainers from the A/C discharge hose.
  12. Remove the 2 fan shroud mounting bolts. Important: Care should be taken when removing the cooling fan assembly not to damage the lower attachment points of both the cooling fan assembly and radiator.
  13. Lift the cooling fan assembly off the lower mounting features of the radiator and position towards the right side of the vehicle in order to remove. CAUTION: The fan blade retaining nut is left hand thread, damage may occur to motor threads if attempting to remove as a right hand thread nut.
  14. Remove the fan retaining nut (5) from the motor (2).
  15. Remove the fan (4) from the motor shaft.
  16. Remove the motor retaining screws (3).
  17. Remove the motor (2) from the shroud (1).

Scheme 83

Scheme 83: Installation Procedure
Scheme 83: Installation Procedure

Scheme 84

Scheme 84
Scheme 84

Scheme 85

Scheme 85
Scheme 85

Scheme 86

Scheme 86
Scheme 86

Scheme 87

Scheme 87
Scheme 87
  1. Install the motor (2) to the shroud (1). CAUTION: Refer to «FASTENER NOTICE»(ref-175132-S17785009232005041500000) .
  2. Install the motor retaining screws (3). Tighten Tighten the screws to 6 N.m (53 in lbs).
  3. Install the fan (4) to the motor shaft.
  4. Install the fan retaining nut (5) to the motor (2). Tighten Tighten the retaining nut to 6 N.m (53 in lbs). Important: Care should be taken when installing the cooling fan assembly not to damage the lower attachment points of both the cooling fan assembly and radiator.
  5. Install the cooling fan assembly into position, aligning the lower feet of the shroud to the mounting features on the radiator. CAUTION: The bolt retaining the condenser to the radiator end tank is a special length and should be the ONLY bolt used upon reinstallation. The use of a longer bolt will damage the radiator end tank.
  6. Install the cooling fan mounting bolts Tighten Tighten the bolts to 6 N.m (53 in lbs).
  7. Connect the wiring harness electrical connectors (1) to the cooling fan motors.
  8. Attach the wiring harness retaining clips (2) to the fan shroud.
  9. Connect the 2 retainers to the A/C discharge hose.
  10. Push the upper transaxle oil cooler line into the radiator quick connect fitting, until a "click" is heard.
  11. Tug gently on the cooler line to ensure proper retention.
  12. Slide the plastic cap (1) over the quick connect joint.
  13. Install the upper transaxle oil cooler line retaining bolt to the fan shroud. Tighten Tighten the bolt to 6 N.m (53 in lbs).
  14. Connect the radiator hose (2) to the radiator (1).
  15. Using the J 37097-A (3) reposition the clamp.
  16. Install the upper tie bar. Refer to «TIE BAR REPLACEMENT -- UPPER»(ref-175313-S27709910712005042000000) .
  17. Connect the battery negative cable. Refer to «BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE»(ref-175172-S37990937682005041800000) .
  18. Fill the cooling system. Refer to «Draining and Filling Cooling System»(ref-175176-S18005840362005041800000) .

More articles — Engine Cooling System