Nissan Pick-ups and Pathfinder 1970-1988

Heater Core

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REMOVAL & INSTALLATION



See Figures 1, 2, 3, 4 and 5

1970-79
  1. Drain the engine coolant.
  2.  
  3. Remove the defroster hoses.
  4.  
  5. Disconnect the water hoses from the inlet and outlet pipes of the heater core.
  6.  
  7. Remove the four clips and front cover.
  8.  
  9. Remove the heater core from the heater housing.
  10.  

To install:
  1. Install the heater core in the housing and press in the clips.
  2.  
  3. Connect the heater hoses and the defroster ducts.
  4.  
  5. Fill the engine with coolant, start the engine and check for any leaks.
  6.  

1980-88 All Series
  1. Remove the heater assembly.
  2.  
  3. Remove the screws and clips and separate the heater case halves.
  4.  

To install:
  1. Slide out the heater core.
  2.  
  3. Install the heater core in the heater case and close the two halves. Install the clips.
  4.  
  5. Install the heater assembly.
  6.  



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Fig. Fig. 1: Removing the heater core - 1970-79



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Fig. Fig. 2: Removing the heater core - 1980-86 (720D series)



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Fig. Fig. 3: Removing the heater core case clips



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Fig. Fig. 4: Removing the heater core from the case



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Fig. Fig. 5: View of the heater core

 
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