a/c electrical probleme

Discussion in '11th Generation F Series : 2004 - 2008' started by Speedsl, Jul 18, 2013.

  1. Jul 18, 2013 at 8:04 AM #1
    Speedsl

    Speedsl Junior Member

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    I have a f150 07 5.4l. My a/c is going on and off. Compressor is new and tested functional. I suspect the wires going to the sensor on the dryer, but shorting the pins does not change anything, maybe further down. Wires tested at the relay. When the a/c is switched on, one wire does not always get voltage a the relay.
    Control is 3 knobs manual with a/c buton. Anyone have any idea?

    Thx
     
  2. Jul 18, 2013 at 8:21 AM #2
    cowboy

    cowboy Sheriff

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    The wire that is not always getting voltage feeding the relay or is that coming out of the relay?
     
  3. Jul 18, 2013 at 8:26 AM #3
    Speedsl

    Speedsl Junior Member

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    No it is going to the relay to energize it and let power to the clutch.
     

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