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A/C shuts down after awhile

Discussion in 'Under the Hood' started by lexplorer, September 18, 2002.

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    1. lexplorer

      lexplorer New Member

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      City, State:
      burlington ontario,canada
      Year, Model & Trim Level:
      '92 XLT
      I have a problem with a/c .. I notice the temp gauge goes up ,and than the a/c will start blowing warm air. I will turn off a/c for awhile and temp will go down . but the a/c will sometimes come back on .. is there a sensor to replace when it gets to hot.... or thermastat replacement ,,p.s. its been a hot summer!!!!
       
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    3. DaleG

      DaleG New Member

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      City, State:
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      Year, Model & Trim Level:
      97 Explorer Sport 4X4
      If your Ex is running hot with the a/c on but not when it is off, then your cooling fan clutch is probably bad and in need of replacing. Does it do it more often in stop and go driving? If so most likely fan clutch. Also make sure nothing is blocking the front of the radiator thru the grill, flush that area real good with stream of water.

      Dale
       
    4. #1Aggie

      #1Aggie New Member

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      City, State:
      Houston, TX
      Year, Model & Trim Level:
      1993 Explorer XLT
      I agree. If your fan does not pull enough air across to condense and subcool the refrigerant than you will not get the thermodynamic effects that is needed to cool your air. You may notice that there is a big difference between when you are still and when you are driving.

      One word of caution about fan clutches. I changed mine out last summer with one from O' Rielly's and it stayed engaged all of the time. Driving down the road in the morning, I could not get the temp up to the "N". It took almost 20 minutes to get it there. In additon, it sounded like an air plane all of the time, even at Highway speeds.

      Went back to Ford and got one from them and everything back to normal. Both locked the same, but they did not act the same.
       
    5. lexplorer

      lexplorer New Member

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      Year, Model & Trim Level:
      '92 XLT
      a/c shutdown

      thanks guys ,,, I will take a look at fan tonight ,,, yes it seems to run hot in stop and go traffic on the qew parking lot......
       
    6. irtySanchez

      irtySanchez Active Member

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      City, State:
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      Year, Model & Trim Level:
      94 XLT
      OK friend, I have had the exact same problem that you are having with my 94 Ex. It has been discussed in this thread:

      http://www.explorerforum.com/forums/showthread.php?threadid=58054

      The reason why yhe A/C is shutting off is because your computer is shutting the A/C off to take some of the load off the engine and to help cool it down a bit.

      My fix for this problem: replace the radiator car! It fixed my situation. I go one from Murray's Auto Parts for $6.99. That is the first thing you need to do, even before you check the fan clutch.

      So start with the radiatior cap!!!
       

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