GM Cutlass RWD 1970-1987 Repair Guide

Radiator

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REMOVAL & INSTALLATION



See Figures 1, 2, 3, 4, 5, 6, 7, 8 and 9

Through 1976
  1. Disconnect the negative battery cable and drain the radiator and disconnect the upper and lower radiator hoses. Disconnect the transmission fluid cooler lines, if so equipped.
  2.  


CAUTION
When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.



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Fig. Fig. 1: A common coolant recovery tank location



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Fig. Fig. 2: Two-piece fan shroud mounting



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Fig. Fig. 3: One-piece fan shroud mounting

  1. Disconnect the coolant recovery hose.
  2.  
  3. Remove the fan shroud-to-radiator screws. Lift the shroud out of the clips and hang the shroud over the fan.
  4.  
  5. Remove the radiator upper mounting panel.
  6.  
  7. Remove the radiator.
  8.  

To install:
  1. Install the radiator and attaching bolts. Torque the bolts to 15 ft. lbs. (20 Nm).
  2.  
  3. If there is a fan shroud, install the shroud and attaching screws.
  4.  
  5. Install the radiator upper panel if so equipped.
  6.  
  7. Connect the radiator upper and lower hoses and, if applicable, the transmission coolant lines. Connect the coolant recovery system line, if so equipped.
  8.  
  9. Connect the negative battery cable and refill the cooling system with the specified amount of engine coolant. Start the engine and check for coolant and transmission fluid leaks.
  10.  

1977 and Later
  1. Refer to steps 1-2 of the above procedure.
  2.  
  3. On 1978 and later models, remove the fan blade and the fan clutch.
  4.  
  5. Remove the fan housing attaching screws and lift out the shroud.
  6.  
  7. On models which have the fan shroud stapled together, remove the staples, then remove the upper shroud half. During assembly, the shroud halves must be drilled and bolted together.
  8.  



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Fig. Fig. 4: To remove the radiator from the vehicle, the fan shroud must first be removed



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Fig. Fig. 5: Remove the fan shroud attaching bolts



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Fig. Fig. 6: Remove the fan shroud



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Fig. Fig. 7: Remove the coolant recovery tank hose by sliding the clamp down the hose



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Fig. Fig. 8: Transmission and oil cooler lines must be disconnected before removing the radiator



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Fig. Fig. 9: Remove the radiator from the vehicle

Some air conditioned models have a high-pressure A/C line which runs across the top of the upper radiator shroud. It is not necessary to remove the line in order to remove the shroud. If the A/C line is clamped to the shroud, disconnect the clamp. Carefully slide the upper shroud half out from under the A/C line, toward the passenger side of the vehicle (fan removed).

  1. Remove the radiator. Reverse to install.
  2.  

 
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