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1999 Dodge Ram Wagon 2500 Question: Why is the AC/start fuse blowing

 

Question

skynnard, 5.9L V8, New Hope, AL, March 15, 2011, 10:37
 Rookie

When the switchpasses thru AC, it blows the fuse, thus vehicle will not start, and no cold air also before fuse blows.

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  • Answer #1

    March 15, 2011, 11:02
     Master

    First thing I'd check is for a shorted A/C compressor clutch. Find the wiring to the compressor, unplug the connector to the A/C clutch, and see if it fixes it. You may want to find an auto electric specialist or a Dodge/Chrysler specialist.
    If you want to find a specialist, here's a directory link for you:
    https://repairpal.com/directory?address=35760&car_brand_names=Dodge

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  • Answer #2

    March 17, 2011, 13:48
     Master

    Fuse #2 (10amp) in the Junction Block powers the Coil side of the A/C Clutch relay. Fuse #5 (20amp) in the Power distribution Center (PDC) under the hood powers the contact side of the A/C Clutch relay AND the contact side of the Starter Motor Relay. Superbob is correct in making sure your A/C Compressor Clutch coil is not shorted or drawing excessive current.

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