Mystery coolant leak

Discussion in '5.9L 3rd Gen Cummins' started by MegaCab, May 2, 2018.

  1. MegaCab

    MegaCab Registered User

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    I had the crank seal replaced yesterday at a repair shopCTD. I drove 3 miles and had the check gages light come, 1 mile further I arrived home and found coolant pouring down the right front portion of the engine. Once parked, it subsided to a trickle off of the a/c compressor. Water pump appears dry, the two small rubber hoses that are notorious for leaking are dry. The upper and lower hoses are also dry.
    This morning the dripping had stopped, but once I opened the radiator cap, it began trickling again from above the a/c compressor.

    Any ideas where the problem lies?
     
    Last edited: May 2, 2018
  2. no mufflers

    no mufflers Supporting Member Supporting Member

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    fill it up with water and pressurize the system and look real good.
     
  3. Skidtech

    Skidtech Full Access Member

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    Probably the head gasket. They are pretty common to leak at the right front especially if you don't keep the coolant flushed.

    Sent from my LG-H700 using Tapatalk
     

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