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air pressure problem need help, 2004 volvo vnl 780

Discussion in 'Trucks [ Eighteen Wheelers ]' started by thedutchbaker, Oct 25, 2012.

Page 2 of 2
  1. Nov 2, 2012 #11
    thedutchbaker

    thedutchbaker Bobtail Member

    36
    0
    Jun 21, 2012
    Hanover, PA
    0
    I checked it and found no air leaks at the fan clutch, however I didnt have any soapy water to test with that I just did a feel test.
     
    thedutchbaker, Nov 2, 2012
    thedutchbaker, Nov 2, 2012
    #11
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  3. Nov 2, 2012 #12
    bender

    bender Road Train Member

    2,105
    1,360
    Jul 20, 2010
    Don't Kid Yourself
    0
    Was the fan hub released? Could you rotate the fan when feeling for a leak?
     
    bender, Nov 2, 2012
    bender, Nov 2, 2012
    #12
  4. Nov 2, 2012 #13
    heavyhaulerss

    heavyhaulerss Road Train Member

    3,723
    2,040
    Dec 23, 2009
    AL/TN BORDER
    0
    check the fan clutch while engine is running. soap the area good, the start the engine & watch all the little bubbles around the fan clutch.
     
    heavyhaulerss, Nov 2, 2012
    heavyhaulerss, Nov 2, 2012
    #13
  5. Nov 5, 2012 #14
    thedutchbaker

    thedutchbaker Bobtail Member

    36
    0
    Jun 21, 2012
    Hanover, PA
    0
    The fan was spinning, and soaped it up good and found nothing for air leaks around the fan clutch
     
    thedutchbaker, Nov 5, 2012
    thedutchbaker, Nov 5, 2012
    #14
  7. Nov 6, 2012 #15
    fireba11

    fireba11 Heavy Load Member

    864
    541
    Jul 30, 2007
    Tracy City, TN
    0
    Had the same problem with my 2004 Volvo recently....There is a air junction block back of the transmission area where several different airlines plug in to provide air for different components. The junction block was cracked and allowing air to leak off. Might want to have this checked.
     
    fireba11, Nov 6, 2012
    fireba11, Nov 6, 2012
    #15
  8. Nov 6, 2012 #16
    Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

    9,318
    30,002
    Jan 20, 2010
    Hesperia, Ca.
    0
    No one mention to R/R the air GOVERNER. It's a cheap fix. Just putting my 2 pennies. But I don't have a Volvo.......:biggrin_25513:
     
    Diesel Dave, Nov 6, 2012
    Diesel Dave, Nov 6, 2012
    #16
  9. Feb 11, 2013 #17
    4MAC

    4MAC Bobtail Member

    1
    0
    Feb 11, 2013
    TN.
    0
    I have a leaking problem also,mine leaks for the Solenoid Mounting base ,on x brace behind cab,does any one know how to fix this,other than a match?
     
    4MAC, Feb 11, 2013
    4MAC, Feb 11, 2013
    #17
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