GM Grand Am/Achieva/Calais/Skylark/Somerset 1985-98

Radiator

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REMOVAL & INSTALLATION



See Figures 1 through 6


CAUTION
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

A cross-flow radiator is used on most models. The radiators used on automatic transaxle models are equipped with oil coolers with inlet and outlet fittings for transmission fluid circulation. An aluminum-plastic radiator can be identified by the black plastic side tanks and aluminum radiator.

  1. Disconnect the negative battery cable.
  2.  
  3. Drain and recycle the engine coolant.
  4.  
  5. If necessary for access to the radiator, remove the air intake duct assembly or air cleaner assembly.
  6.  
  7. On automatic transaxles, disconnect and plug the upper oil cooler line.
  8.  
  9. Disconnect the engine strut brace at the radiator, loosen the engine side bolt and swing aside, if equipped.
  10.  
  11. Matchmark and remove the hood latch from the radiator support.
  12.  
  13. Detach the upper hose and coolant reserve tank hose from the radiator.
  14.  
  15. Disconnect the forward light harness and fan wiring. Remove the electric cooling fan. On some models this may not be able to be removed unless the front end of the vehicle is raised and supported.
  16.  
  17. Raise and safely support the vehicle.
  18.  
  19. Remove the engine cooling fan if not yet done.
  20.  
  21. If equipped, remove the splash panel below the radiator outlet hose. Detach the lower hose from the radiator.
  22.  
  23. If equipped, disconnect and plug the lower oil cooler line.
  24.  
  25. Carefully lower the vehicle.
  26.  
  27. If equipped with air conditioning, remove the radiator to condenser bolts. Unbolt the refrigerant line clamp. Do not disconnect the lines.
  28.  
  29. Remove the mounting bolts and clamp, then the shroud (if equipped) and carefully lift the radiator out of the engine compartment.
  30.  



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Fig. Fig. 1: Slide the tension clamp back over the overflow hose, then slide the hose off the nipple of the filler neck



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Fig. Fig. 2: Carefully pull the upper hose from the radiator



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Fig. Fig. 3: Disconnect and plug the oil cooler lines if equipped



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Fig. Fig. 4: Unfasten the shroud mounting bolts ...



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Fig. Fig. 5: ... then remove the shroud for access to the radiator



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Fig. Fig. 6: Carefully lift the radiator from the front of the engine compartment

To install:
  1. Lower the radiator into position.
  2.  
  3. Install the mounting clamps and bolts, including those associated with air conditioning parts.
  4.  
  5. Raise and safely support the vehicle.
  6.  
  7. If equipped, attach the automatic transaxle cooler lines.
  8.  
  9. Connect the lower hose(s) and attach the splash shield if equipped.
  10.  

If the engine cooling fan was removed while the vehicle was in the air, install the assembly and attach all electrical wiring.

  1. Carefully lower the vehicle.
  2.  
  3. If not already done, install the electric cooling fan, then attach the electrical connector(s).
  4.  
  5. Connect the upper hose and coolant reserve tank hose.
  6.  
  7. Install the hood latch and strut brace.
  8.  
  9. Fill the system with coolant.
  10.  
  11. Connect the negative battery cable, then start the engine. Run the vehicle until the thermostat opens, fill the radiator and recovery tank to their correct levels, then check the automatic transaxle fluid level.
  12.  
  13. Turn the engine OFF , then once the vehicle has cooled, recheck the coolant level.
  14.  

 
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