Question about 2004 Ford F150

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Turned on a/c and it blows hot air. Looked a fuses and they are good.. What esle can I look for? It was working going up hill. At the top cooled down for 3 mins. 2 hours later back on the road turn on a/c it blows hot air. Any idea

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  • Doug Crawford
    Doug Crawford May 11, 2010

    It could be an electrical problem or low refrigerant, is there a check engine light or any codes showing?

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  • Master
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HI, i recommend checking the following areas for faults.

1. A/C compressor- check to see if the unit is Low On Refrigerant, or Restricted.
2. A/C Clutch- A/C Compressor Clutch May not be engaging as it should. inspect the clutch action by monitoring it during the run cycle.

3. A/C Expansion Valve - You could have a Faulty A/C Expansion Valve, Restricted valve or, a Bad Capillary Tube.

Check the above areas thoroughly. you will find the issue in one or all the areas above.

***Use caution when preforming these checks. you don't want to have an accident.


Posted on Jun 21, 2009

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  • Ford Master
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Low system charge or defective low side compressor cycling switch

Posted on Jun 21, 2009

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