GM Cadillac Deville_Fleetwood_ELD_Seville 1990-1998

Engine Fan

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REMOVAL & INSTALLATION



3.0L Engine
Primary engine cooling fan
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the secondary air cut-off valve bracket bolts and disconnect the bracket from the fan housing.
  4.  
  5. Remove the resonance chamber
  6.  
  7. Remove the upper radiator covers.
    1. Release the self-locking tabs.
    2.  
    3. Remove the screws.
    4.  

  8.  
  9. Detach the electrical connector from the primary fan motor and the primary fan-cooling switch (located at the upper driver's side of the radiator).
  10.  
  11. Remove the auxiliary coolant pump from the primary fan housing by removing the two attaching clips.
  12.  
  13. Disconnect the upper transmission oil cooler pipefitting and seals, loosen the lower oil cooler pipefitting. Place a drain pan under oil cooler pipes when removing and loosening the fittings.
  14.  
  15. Remove the fan housing bolts, and remove the fan with the housing from the vehicle.
    1. Snug the lower transmission oil cooler pipe fitting to minimize fluid loss.
    2.  

  16.  
  17. Remove the fan motor from the housing,, by removing the nuts.
  18.  

To install:

  1. Installation is the reversal of the removal procedure.
  2.  

Secondary auxiliary cooling fans

NOTE
If your vehicle is equipped with air conditioning, refer to the information regarding the implications of servicing your A/C system yourself. Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components.

  1. Remove the A/C condenser.
  2.  
  3. Detach the electrical connectors from the fans.
  4.  
  5. To remove the fans form the radiator support.
    1. Unseat the upper retainers by tilting the fans rearward.
    2.  
    3. Lift the fans to unseat the lower retainers.
    4.  

  6.  

To install:

  1. Installation is the reversal of the removal procedure.
  2.  

4.5L and 4.9L Engines
Deville And Fleetwood

NOTE
If your vehicle is equipped with air conditioning, refer to the information regarding the implications of servicing your A/C system yourself. Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components.

  1. Disconnect the negative battery cable.
  2.  
  3. Raise and safely support the vehicle.
  4.  
  5. Detach the electrical connectors from the rear of the fan assemblies.
  6.  
  7. Remove the fan-to-lower radiator cradle bolts.
  8.  
  9. Lower the vehicle.
  10.  
  11. For the right fan removal, remove the air conditioning accumulator to gain working clearance.
  12.  
  13. Remove the air cleaner intake duct.
  14.  
  15. Remove the upper fan-to-radiator panel bolts and the upper radiator panel.
  16.  
  17. Remove the cooling fan assemblies.
  18.  



Click image to see an enlarged view

Fig. Cooling fans-Deville, and Fleetwood

To install:

  1. Install the cooling fan(s). Replace the mounting bolts.
  2.  
  3. Replace the air cleaner intake duct.
  4.  
  5. Install the air conditioning accumulator, if removed.
  6.  
  7. Raise and safely support the vehicle.
  8.  
  9. Replace the fan-to-lower radiator cradle mounting bolts.
  10.  
  11. Connect the electrical connectors. Lower the vehicle.
  12.  
  13. Connect the negative battery cable.
  14.  

FRONT FAN-Eldorado and Seville
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the radiator cover panel.
  4.  
  5. Detach the electrical connector.
  6.  
  7. Remove the right headlight bracket.
  8.  
  9. Remove the fan-retaining bolts and remove the fan from the vehicle.
  10.  



Click image to see an enlarged view

Fig. Cooling fans-Eldorado and Seville with 4.5L engine



Click image to see an enlarged view

Fig. Cooling fans-Eldorado and Seville with 4.9L engine

To install:

  1. Install the fan to vehicle. Tighten to 88 inch lbs. (10 Nm).
  2.  
  3. Connect the electrical connector.
  4.  
  5. Install the right headlight bracket.
  6.  
  7. Install the radiator cover panel.
  8.  
  9. Connect negative battery cable.
  10.  

REAR FAN-Eldorado and Seville
  1. Disconnect the negative battery cable.
  2.  
  3. Detach the fan electrical connector.
  4.  
  5. Remove the upper engine-to-radiator support torque strut and oil cooler line bracket from the fan.
  6.  
  7. Remove the fan-retaining bolts and remove the fan from the vehicle.
  8.  

To install:

  1. Install the fan in vehicle. Tighten bolts to 97 inch lbs. (11 Nm).
  2.  
  3. Connect the electrical connector.
  4.  
  5. Connect the upper engine-to-radiator support torque strut and oil cooler line bracket to the fan.
  6.  
  7. Tighten the torque strut-to-radiator mounting bolts to 17 ft. lbs. (23 Nm).
  8.  
  9. Connect the negative battery cable.
  10.  

4.6L Engine
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the beauty panel assembly.
  4.  
  5. Remove the left side engine torque support strut.
  6.  
  7. Position the upper radiator hose out of the way.
  8.  
  9. Detach the fan electrical connector.
  10.  
  11. Remove the retaining bolts and remove the fan(s).
  12.  



Click image to see an enlarged view

Fig. Cooling fans-Eldorado and Seville with 4.6L Northstar engine



Click image to see an enlarged view

Fig. The fan is held by two bolts at the top



Click image to see an enlarged view

Fig. Remove the bolts at the top of the fan



Click image to see an enlarged view

Fig. Detach the electrical connector from the fan



Click image to see an enlarged view

Fig. Grasp the fan and . . .



Click image to see an enlarged view

Fig. . . . lift it up to remove it from the engine

To install:

  1. Install the fan(s) to vehicle. Tighten the retaining bolts to 88 inch lbs. (10 Nm).
  2.  
  3. Connect the fan electrical connector.
  4.  
  5. Reposition the upper radiator hose and install the left side engine torque strut.
  6.  
  7. Install the beauty panel assembly and connect the negative battery cable.
  8.  

TESTING



  1. Check the fuse or circuit breaker for power to the cooling fan motor.
  2.  
  3. Remove the connector(s) at the cooling fan motor(s). Connect a jumper wire and apply battery voltage to the positive terminal of the cooling fan motor.
  4.  
  5. Using an ohmmeter, check for continuity in the cooling fan motor.
  6.  


NOTE
Remove the cooling fan connector at the fan motor before performing continuity checks. Perform continuity check of the motor windings only. The cooling fan control circuit is connected electrically to the PCM through the cooling fan relay center. Ohmmeter battery voltage must not be applied to the PCM.

  1. Ensure proper continuity of cooling fan motor ground circuit at chassis ground connector.
  2.  

 
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