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While taking out my transmission I found this leak - help me diagnose

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    While taking out my transmission I found this leak - help me diagnose

    I found this hose leaking while taking out my transmission. Can you help me diagnose what this is? My guess is it’s coming from underneath the air intake. But it is really hard to tell. It’s forward of the transmission and starter. Thanks.


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    ‘04 M3

    #2
    Crankcase vent hose that goes from the oil pan to the bottom of the intake manifold. Remove it from the manifold and check for damage to the o-rings or the four prongs that secure it to the intake. It also has an orientation and it does not look fully clipped in.

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      #3
      Awesome thank you. I will do that. And can anyone’s tell me what the lolipop looking thing is just to the lower left, looks like a metal piece with a black rubber dimpled circular insert?
      ‘04 M3

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        #4
        Originally posted by Maxhouse97 View Post
        Awesome thank you. I will do that. And can anyone’s tell me what the lolipop looking thing is just to the lower left, looks like a metal piece with a black rubber dimpled circular insert?
        Mount for SMG pump

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          #5
          Originally posted by Slideways View Post
          Crankcase vent hose that goes from the oil pan to the bottom of the intake manifold. Remove it from the manifold and check for damage to the o-rings or the four prongs that secure it to the intake. It also has an orientation and it does not look fully clipped in.
          Damn you're good! I couldn't tell where he was referring to.

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            #6
            Yes thank you, my car was an SMG conversion from previous owner.
            ‘04 M3

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