TOM WALKER wrote to ROY WITT:   
      
    RW> RW>>> Mine says the same thing. It even has 4 stages of procedures to   
    RW> RW>>> check the AC system. However, it doesn't have a procedure to   
    RW> RW>>> check out why the radiator fans don't engage as the engine   
    RW> RW>>> temps get higher than normal operating temps when the PCM   
    RW> RW>>> detects that the system is low on freon.   
      
    RW> TW>> Since the Engine temperature function has priority so the fans   
    RW> TW>> should have run in high speed. Since it did not it indicatas   
    RW> TW>> either a bad engine block sensor, a problem with one of the   
    RW> TW>> Relays, or an unusual problem with the vehicle speed input to   
    RW> TW>> the PCM.   
      
    RW>> Since all of it works as designed with a full load of freon, I have   
    RW>> my doubts about your diagnoses.   
      
    TW> Doubt al you wabnt. But the Circuit was designed so the Engine Bloc   
    TW> kTemperasture has Priority and should always run the fans no mater   
    TW> what the other sensors dictated.   
      
    TW> IF the Fans did not run when the engine cooling water reached the Set   
    TW> Temp for fan activaqtion there WAS a fault in the system   
      
   Lemme put it this way; if your scenario were true, there would be a fault   
   code in the PCM...there is none.   
      
      
            R\%/itt   
      
      
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