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Need help!

Discussion in 'Peterbilt Forum' started by KeenCo, Oct 6, 2016.

  1. Oct 6, 2016 #1
    KeenCo

    KeenCo Bobtail Member

    7
    2
    Oct 6, 2016
    0
    Need help! I just started a heavy haul company, KeenCO Transport, LLC
    I have a 2010 peterbilt 367, 18 speed with 550 hp is Cummins engine. Right after we purchased it and put a load behind it we noticed antifreeze shooting out of the over flow cap. We replaced the caps, cleaned out radiator took it to two shops. Eventually some thing caused the engine to start to lock up. We rebuilt the engine, replacing head gaskets, etc. For 2 weeks it was fine and now it's dumping antifreeze again. It's hard to tell what it's coming out of. We replaced over flow cap again. Any ideas? At this point we've had 2 shops and 4 mechanics look at it. Thermostat was replaced, fan clutch was looked at and is fine.
    I started the transport company under my husbands land clearing/construction company KeenCo, LLC so knowing what truck are "the good one's" it's very new to me.
     
    KeenCo, Oct 6, 2016
    KeenCo, Oct 6, 2016
    #1
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  3. Oct 6, 2016 #2
    Big John Classic HQ

    Big John Classic HQ Light Load Member

    83
    82
    May 21, 2015
    0
    EGR cooler checked? Pressure check cooling system?
    Was head checked for cracks?
    Were new liners installed? If not could be a pin hole in a liner also. Hope this helps.
     
    Big John Classic HQ, Oct 6, 2016
    Big John Classic HQ, Oct 6, 2016
    #2
    KeenCo Thanks this.
  4. Oct 6, 2016 #3
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,780
    1,726
    Jun 14, 2009
    romulus,mi
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    What did "we rebuilt the engine" consist of?
     
    QUALITYTRUCK, Oct 6, 2016
    QUALITYTRUCK, Oct 6, 2016
    #3
  5. Oct 7, 2016 #4
    clausland

    clausland Road Train Member

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    Dec 5, 2014
    North Woods
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    If it's puking juice, it sounds like it's building pressure from somewhere.....Pressure test the system when it's cold and see if you have any leak down....Sometimes a bad/improper rad cap will cause it to start puking too....What is the engine temp when it starts puking?....When you say the engine "locked up", what actually happened there?...
     
    clausland, Oct 7, 2016
    clausland, Oct 7, 2016
    #4
  7. Oct 9, 2016 #5
    JKrabs

    JKrabs Bobtail Member

    34
    40
    Oct 1, 2016
    0
    You've got 3 major causes of this.

    1 (Most common): The liners eroded the block and the liner protrusion is not right. If you did not cut and shim the block, you likely blew another head gasket.
    2: EGR cooler failure (pressure test the exhaust side of the EGR cooler, if it's failed you'll have air coming out of the coolant inlet/outlet.
    3: Air compressor failure (namely an air compressor head or headgasket failure). This can be diagnosed by the engine only pushing coolant when the compressor is building. Once the compressor cuts out, you won't be pushing coolant anymore.
     
    JKrabs, Oct 9, 2016
    JKrabs, Oct 9, 2016
    #5
    Big John Classic HQ Thanks this.
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