GM Storm/Spectrum 1985-1993 Repair Guide

Radiator

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REMOVAL & INSTALLATION



Spectrum

See Figure 1

  1. Disconnect the battery negative cable.
  2.  
  3. Drain the cooling system by removing the drain plug from the lower side of the radiator. Install the drain plug back into the radiator immediately after the system has been emptied in order to avoid loosing or forgetting the plug.
  4.  
  5. Remove the air intake duct.
  6.  
  7. Remove the fan motor cable from the rear of the fan motor socket and disconnect the cable from the thermo-switch.
  8.  
  9. Remove the fan and motor assembly.
  10.  
  11. Disconnect the upper and lower radiator hoses from the radiator, the coolant recovery hose at the filler neck and the oil cooler lines from the radiator, if equipped with automatic transaxle.
  12.  
  13. Remove the radiator fasteners, then carefully remove the radiator from the vehicle.
  14.  
  15. Reverse procedure to install and fill the engine cooling system.
  16.  
  17. Connect the battery negative cable, then start the engine and check for leaks.
  18.  



Click image to see an enlarged view

Fig. Fig. 1: Spectrum cooling system - radiator and fan/motor assembly

Storm

See Figure 2

1990-1991 VEHICLES
  1. Disconnect the battery negative cable.
  2.  
  3. Drain cooling system.
  4.  
  5. If equipped with automatic transaxle, disconnect the oil cooler lines from the radiator.
  6.  
  7. Remove the upper and lower radiator hoses from the radiator.
  8.  
  9. Disconnect the fan motor cable from the rear of the fan motor socket.
  10.  
  11. Remove the coolant recovery hose from the radiator filler neck.
  12.  
  13. Remove the radiator attaching bolts and core retainer, then remove the radiator along with the fan and motor assembly from the vehicle.
  14.  
  15. Reverse procedure to install.
  16.  
  17. Connect the battery negative cable and properly refill the cooling system.
  18.  
  19. Start the engine and check for leaks.
  20.  

1992-1993 VEHICLES
  1. Disconnect the battery negative cable and drain the cooling system.
  2.  
  3. Remove the upper radiator hose from the radiator, then remove the 2 upper fan shroud mounting bolts.
  4.  
  5. Raise and support the vehicle safely.
  6.  
  7. Remove the left side splash shield, then remove the lower fan shroud mounting bolts.
  8.  
  9. Disconnect the lower radiator hose and, if applicable, the automatic transaxle fluid cooler lines from the radiator. Cap the transaxle lines to prevent excess fluid loss or contamination.
  10.  
  11. Remove the supports, then carefully lower the vehicle.
  12.  
  13. Unplug the radiator fan and thermo switch electrical connectors, then remove the fan assembly from the vehicle.
  14.  
  15. Remove the 7 radiator core support bolts, then remove the support from the vehicle.
  16.  
  17. Remove the radiator from the vehicle, and if it is being replaced, remove the thermo switch from the radiator.
  18.  

To install:
  1. If removed, install the thermo switch in the base of the radiator.
  2.  
  3. Install the radiator and support to the vehicle, then tighten the support retainers to 89 inch lbs. (10 Nm).
  4.  
  5. Install the radiator fan assembly to the vehicle and tighten the mounting bolts to 89 inch lbs. (10 Nm).
  6.  
  7. Install the wiring harness connectors to the fan and the radiator thermo switch.
  8.  
  9. Raise and support the vehicle safely, then connect the lower radiator hose, and if applicable, the automatic transaxle fluid cooler hoses.
  10.  
  11. Install the lower fan shroud and tighten the mounting bolts to 89 inch lbs. (10 Nm).
  12.  
  13. Install the left splash shield, then remove the supports and carefully lower the vehicle.
  14.  
  15. Connect the upper radiator hose, then refill the engine cooling system.
  16.  
  17. Connect the negative battery cable, then start the engine and check for leaks.
  18.  



Click image to see an enlarged view

Fig. Fig. 2: Storm cooling system - radiator and fan/motor assembly

 
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