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2004 M2 MBE900 Fan not coming on?

Discussion in 'Freightliner Forum' started by Josh Golden, Aug 1, 2015.

  1. Aug 1, 2015 #1
    Josh Golden

    Josh Golden Bobtail Member

    1
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    Aug 1, 2015
    0
    So I had a leak in the air line going to the Engine Fan. Replaced the Fan and now it will not come on.
    Any ideas. Does the computer sense an air leak an shut that AMU down? there are to prongs going into the AMU block for the cooling fan. One has 12V when I turn the A/C on as it should. but no fan. Please Help...
     
    Josh Golden, Aug 1, 2015
    Josh Golden, Aug 1, 2015
    #1
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  3. Aug 1, 2015 #2
    damutt

    damutt Road Train Member

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    ok you said you have an air leak going TO the fan, did you replace the air line going TO the fan?or just replace the fan?
     
    damutt, Aug 1, 2015
    damutt, Aug 1, 2015
    #2
  4. Aug 2, 2015 #3
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,780
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    Jun 14, 2009
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    follow the wires from AMU under fifth wheel backwards ,cut many zip ties. There are about 3 different spots where the other wire (ground from ecm)could be broken. Easy to follow before it goes into main harness. Good luck.
     
    QUALITYTRUCK, Aug 2, 2015
    QUALITYTRUCK, Aug 2, 2015
    #3
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