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Got a oil leak. 2012 cascadia dd15

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by reelheavy, May 29, 2020.

  1. May 29, 2020 #1
    reelheavy

    reelheavy Light Load Member

    94
    55
    Mar 15, 2017
    Maryland
    0
    I noticed a leak on one of my trucks. While moving some trailers. While the motor was running I left a small drop smaller that a dime then I look under it and seen some gunk look like some blow by. Pics attached. I took the pictures from the drivers side right behind the front wheel. Gonna see what I can see in the morning. Any ideas? Or things to look for in diagnosing the problem? All help greatly appreciated. 20200529_222202.jpg 20200529_222240.jpg 20200529_222202.jpg 20200529_222202.jpg 20200529_222240.jpg
     

    Attached Files:

    reelheavy, May 29, 2020
    reelheavy, May 29, 2020
    #1
    truckdriver31 Thanks this.
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  3. May 29, 2020 #2
    truckdriver31

    truckdriver31 Road Train Member

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    Sep 18, 2013
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    clean it with brake cleaner good around oil pan. walmart sales break cleaner in the can cheap
     
    truckdriver31, May 29, 2020
    truckdriver31, May 29, 2020
    #2
    PE_T Thanks this.
  4. May 30, 2020 #3
    ast26909

    ast26909 Medium Load Member

    408
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    Mar 1, 2018
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    It's probably the cam housing gasket or the valve cover gasket.
     
    ast26909, May 30, 2020
    ast26909, May 30, 2020
    #3
  5. Jun 2, 2020 #4
    PE_T

    PE_T Road Train Member

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    Jul 12, 2017
    Texas (trucking since 02/2013)
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    Yeah, you’re going to have to clean the engine a bit to get a better look. It can be the air compressor or the fuel pump.
     
    PE_T, Jun 2, 2020
    PE_T, Jun 2, 2020
    #4
  7. Jun 3, 2020 #5
    Motto

    Motto Light Load Member

    102
    125
    Apr 10, 2020
    0
    If its not coming out from top then you need to change o rings of air compressor and fuel pump. This usually happens around 800k miles. If its coming from top then could be cam housing gasket or valve cover gasket .
     
    Motto, Jun 3, 2020
    Motto, Jun 3, 2020
    #5
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