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Thread: coolant in oil

  1. #1
    Join Date
    Jun 2018
    Location
    wi
    Posts
    2

    Default coolant in oil

    Very unlikely I'm sure, but is there any other source for coolant making its way into the crankcase other than blown head gasket? The vehicle is a 2001 V70XC mileage approx 90,000 with updated timing belt. Oxy sensor is generating occasional codes, but no other major problems. Worth cost to repair? Thx in advance for input..

  2. #2
    Join Date
    May 2012
    Location
    Calgary, Alberta
    Posts
    614

    Default

    If your engine has an oil cooler (coolant to oil oil cooler) it may be your source.

  3. #3
    Join Date
    Oct 2022
    Location
    NE Georgia
    Posts
    3

    Default

    Hey ssicarman, I'm having same issue (2001 v70 xc, 313K miles) and wondered about the oil cooler. Have you heard of the oil cooler failing, leaking (only) into the crankcase? Do you know of a way to check the cooler without removing it? Pressure test cooling system? I seem to have coolant in the oil but no oil in the coolant. Rapid coolant loss without apparent leak. No sign of coolant on dipstick of cold engine. With slightly warm engine, distick oil full of bubbles but not foamy (yet). Got to have hope it's not the head gasket.
    Last edited by MurphsLaw; 11-26-2022 at 09:50 AM. Reason: better explanation

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