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    dh45bigfoot's Avatar
    dh45bigfoot Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 4, 2007, 03:20 PM
    1998 F150 Air Conditioner
    I have a 1998 Ford F150 - 4.6L V8 104,000 miles

    The air conditioning was recharged last summer and worked fine all season. This year, the compressor will not switch on. I had the coolant charge checked and it is still full.
    All fuses are OK.
    I don't have any experience in auto AC, but since this is my only ride, taking it somewhere for troubleshooting is inconvenient & expensive. Anyone have any troubleshooting tips?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Jul 4, 2007, 04:58 PM
    . Test all under-dash and under-hood fuses with a test light or multimeter. Here's how:

    https://www.askmehelpdesk.com/cars-t...tml#post252145

    . Check connections, continuity, and action of the Compressor Clutch Relay. There should be continuity between the C and D terminals. There should be continuity between the A and B terminals, when power and ground are connected to the C and D terminals. There should be no continuity, when power is disconnected.
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