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Can't locate source coolant Leak

Discussion in 'Trucks [ Eighteen Wheelers ]' started by mjfmjf, Dec 3, 2012.

  1. Dec 3, 2012 #1
    mjfmjf

    mjfmjf Light Load Member

    71
    13
    Jan 23, 2012
    Harpersfield, Oh
    0
    Not my truck but my friends. 2007 Freightliner Coronado, Detroit Series 60, 515 HP with 710,000 miles. New turbo recently installed as well as radator and heater core. Approximately 600 miles after turbo replaced truck sporadically sporadcially leaks coolant and turbo cuts out and exhaust spews heavy black smoke. Engine has been pressure tested by local mechanic and all was fine. No coolant in oil and stacks show no sign of any moisture. Anyone have any thoughts?
     
    mjfmjf, Dec 3, 2012
    mjfmjf, Dec 3, 2012
    #1
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  3. Dec 3, 2012 #2
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,642
    Oct 11, 2010
    Borispol, Ukraine
    0
    EGR cooler unit........................
     
    Pablo-UA, Dec 3, 2012
    Pablo-UA, Dec 3, 2012
    #2
    mjfmjf Thanks this.
  4. Dec 3, 2012 #3
    upallnite

    upallnite Light Load Member

    165
    115
    May 15, 2010
    Hempstead,TX
    0
    Have a competent mechanic check the injector cup seals.
     
    upallnite, Dec 3, 2012
    upallnite, Dec 3, 2012
    #3
    mjfmjf Thanks this.
  5. Dec 3, 2012 #4
    Gear head

    Gear head Medium Load Member

    532
    91
    Apr 1, 2012
    Belair,md
    0
    I think egr cooler also if it was injector cups it would be in oil or compression in cooling system. Stick your finger in blowby if there is clumpy white and black jelly substance there is coolant in oil. Alot of times if there is not alot and i mean alot of coolant in oil pan it is hard to tell by dipstick. You can also look at oil fill cap it will have jelly stuff. The coolant steams out of oil.
     
    Gear head, Dec 3, 2012
    Gear head, Dec 3, 2012
    #4
    mjfmjf Thanks this.
  7. Dec 5, 2012 #5
    mjfmjf

    mjfmjf Light Load Member

    71
    13
    Jan 23, 2012
    Harpersfield, Oh
    0
    it was the egr...3k to fix
     
    mjfmjf, Dec 5, 2012
    mjfmjf, Dec 5, 2012
    #5
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