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12.7 detroit over heating...

Discussion in 'Trucks [ Eighteen Wheelers ]' started by brenes-built, Jul 8, 2012.

Page 1 of 3
  1. Jul 8, 2012 #1
    brenes-built

    brenes-built Light Load Member

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    Apr 14, 2011
    Vancouver, Wa
    0
    Okay this is a friends truck and it's been over heating. He replaced t-stats in it and it didn't help. So having to deliver a load took them off, but it's still running hot. 220 to 240 when pulling a hill it won't cool off even with fan. He got home replaced the radiator and water pump left the t-stats off, still no luck.. Any ideas? He says he's not losing any water either..
     
    brenes-built, Jul 8, 2012
    brenes-built, Jul 8, 2012
    #1
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  3. Jul 8, 2012 #2
    MNdriver

    MNdriver Road Train Member

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    MNdriver, Jul 8, 2012
    MNdriver, Jul 8, 2012
    #2
  4. Jul 8, 2012 #3
    daf105paccar

    daf105paccar Road Train Member

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    How old is his radiator?
    Has it it ever been cleaned?
    Outside AND inside.(i had a truck overheat because radiator was clogged inside)
     
    daf105paccar, Jul 8, 2012
    daf105paccar, Jul 8, 2012
    #3
  5. Jul 8, 2012 #4
    jbatmick

    jbatmick Road Train Member

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    hastings, Fl
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    There are engines that will run hotter with no thermostats than with thermostats. Water goes radiator too fast and will not get cooled.
     
    jbatmick, Jul 8, 2012
    jbatmick, Jul 8, 2012
    #4
  7. Jul 8, 2012 #5
    MNdriver

    MNdriver Road Train Member

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    They are new
     
    MNdriver, Jul 8, 2012
    MNdriver, Jul 8, 2012
    #5
  8. Jul 8, 2012 #6
    daf105paccar

    daf105paccar Road Train Member

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    My bad.
    I read too fast.
    I apologise.:biggrin_25521:
     
    daf105paccar, Jul 8, 2012
    daf105paccar, Jul 8, 2012
    #6
  9. Jul 8, 2012 #7
    MNdriver

    MNdriver Road Train Member

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    no problem.

    Just might change your thunkin.

    Will be interesting to follow.
     
    MNdriver, Jul 8, 2012
    MNdriver, Jul 8, 2012
    #7
  10. Jul 8, 2012 #8
    brenes-built

    brenes-built Light Load Member

    157
    15
    Apr 14, 2011
    Vancouver, Wa
    0
    The old one he cleaned with some cleaner sold to him by freightliner and then changed out the thermostats, then the radiator and pump..
     
    brenes-built, Jul 8, 2012
    brenes-built, Jul 8, 2012
    #8
  11. Jul 8, 2012 #9
    rebel127

    rebel127 Light Load Member

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    Feb 28, 2011
    monroe ct
    0
    Is it possible that the temp sensor is bad if the power is still good and the engine is not derating it could be simple. There are several sensors the gauge and the ECM use different ones. Just a thought.
     
    rebel127, Jul 8, 2012
    rebel127, Jul 8, 2012
    #9
  12. Jul 8, 2012 #10
    jbatmick

    jbatmick Road Train Member

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    hastings, Fl
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    And a good one at that.
     
    jbatmick, Jul 8, 2012
    jbatmick, Jul 8, 2012
    #10
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