2008 VNL780 adding manual fan switch

Discussion in 'Volvo Forum' started by KB3MMX, Apr 16, 2015.

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  1. JORDAN670

    JORDAN670 Bobtail Member

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    What is pin with small pigtail??? Send me pic please, thanks.
     
    JORDAN670, Jan 1, 2017
    #41
  2. KB3MMX

    KB3MMX Road Train Member

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    Sorry i don't have a pic without taking it all apart. However , when you remove the green connector , they are numbered , look for a open hole in #19
     
    KB3MMX, Jan 1, 2017
    #42
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  3. KB3MMX

    KB3MMX Road Train Member

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    Oh and you will need to open up the pin lock tab before adding the pin
     
    KB3MMX, Jan 1, 2017
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  4. KB3MMX

    KB3MMX Road Train Member

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    It's the big green connector on right btw
     
    KB3MMX, Jan 1, 2017
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  5. KB3MMX

    KB3MMX Road Train Member

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    KB3MMX, Jan 1, 2017
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  6. JORDAN670

    JORDAN670 Bobtail Member

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    I don't see numbers in the big green connector.
     

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    JORDAN670, Jan 1, 2017
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  7. KB3MMX

    KB3MMX Road Train Member

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    Look on other side with pin lock strip open

    They're small but visible....tip; it'll be a open slot without a pin
     
    KB3MMX, Jan 1, 2017
    #47
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  8. JORDAN670

    JORDAN670 Bobtail Member

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    Do i have to get this P/N 3948725 in the volvo dealer?
     
    JORDAN670, Jan 2, 2017
    #48
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  9. KB3MMX

    KB3MMX Road Train Member

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    Yes
     
    KB3MMX, Mar 22, 2017
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  10. Robervolvo

    Robervolvo Bobtail Member

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    Hello everybody, I have a 2009 VNL 780 with D16,VISCOUS FAN CLUTCH.
    I having a problem when i turn my a/c on, the viscous fan looks like not engaging or run faster.
    My a/c gets warm at traffic or idling.
    When i have air flow thru the condensor blow cold.
    New compresor,dryer,pressure switch and still have the same problem.
    Volvo connect the computer and manually activate the clutch and clutch work Ok.
    Its possible i have an open circuit between Hi pressure switch and VCM ? Any help will be appreciated.
     
    Robervolvo, May 17, 2018
    #50
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