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EGR cooler?

Discussion in 'Freightliner Forum' started by brycey1, Jun 25, 2012.

  1. Jun 25, 2012 #1
    brycey1

    brycey1 Light Load Member

    133
    70
    Nov 19, 2007
    palm bay , florida
    0
    i have a 2005 century with 650k miles on it, its a detroit 515hp motor, i am loosing about 2 gallons of coolant a day, no visible signs of a leak, no white smoke coming from exhaust, no leakage from coolant reservoir or overflow, checked oil which looks clean could it be the egr cooler? always smells of coolant inside the truck, sometimes see white mist coming through the vents when heavy and climbing hills.
    thanks
    Rich
     
    brycey1, Jun 25, 2012
    brycey1, Jun 25, 2012
    #1
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  3. Jun 25, 2012 #2
    jarrod

    jarrod Bobtail Member

    12
    0
    Jun 13, 2012
    Alabama
    0
    Sounds like a heater core.
     
    jarrod, Jun 25, 2012
    jarrod, Jun 25, 2012
    #2
  4. Jun 26, 2012 #3
    brycey1

    brycey1 Light Load Member

    133
    70
    Nov 19, 2007
    palm bay , florida
    0
    i have noticed water dripping down on the rear passenger side of the engine between and below the air filter and the firewall
     
    brycey1, Jun 26, 2012
    brycey1, Jun 26, 2012
    #3
  5. Jun 26, 2012 #4
    VisionLogistics

    VisionLogistics Road Train Member

    1,551
    978
    Dec 8, 2011
    Jellystone
    0
    Yep, sure does. Look to see if you have a shut off valve on the heater hoses and close it off to see if that helps narrow it down. 2 gallons is a lot, so you should see a puddle under the truck if it sits for a spell.
     
    VisionLogistics, Jun 26, 2012
    VisionLogistics, Jun 26, 2012
    #4
  7. Sep 20, 2012 #5
    55_cans

    55_cans Light Load Member

    96
    19
    Sep 14, 2012
    Alberta
    0
    This would be my guess to based on you other posts.

    But also don't forget to run out the compressor and air system, are the tanks collecting more liquid than normal?
     
    55_cans, Sep 20, 2012
    55_cans, Sep 20, 2012
    #5
  8. Sep 23, 2012 #6
    ISF

    ISF Bobtail Member

    17
    1
    May 7, 2012
    0
    Hi Brycey1,
    If there are not visible signs of acoolant leaks it's going in the engine and burning it.
    It could be the EGR cooler or the Head they have had a problem with that. Take it to Montreal and have them eliminate that EGR system and do some Econ tuning.
    Doing that will increase Fuel Econ, Power and no more 39 codes ever again.
    thank you ISF
     
    ISF, Sep 23, 2012
    ISF, Sep 23, 2012
    #6
  9. Sep 25, 2012 #7
    wetwelder

    wetwelder Bobtail Member

    12
    2
    Sep 15, 2012
    0
    also check your fuel tanks,, for coolant, if the injector cups bushing is bad you will get coolant in the fuel, if it has water line valves turn them off to eleminate the heater cores in the cab an the bunk,, good luck
     
    wetwelder, Sep 25, 2012
    wetwelder, Sep 25, 2012
    #7
  10. Oct 28, 2014 #8
    nsxftw

    nsxftw Light Load Member

    192
    39
    Dec 2, 2011
    n/a
    0
    This is exactly what i'm going through. I don't have bunk heater, but before I bought the truck that i saw how they bypassed the heater line from back of the bunk.
     
    nsxftw, Oct 28, 2014
    nsxftw, Oct 28, 2014
    #8
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