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05 Columbia runs hot

Discussion in 'Freightliner Forum' started by jlb7254, Jul 12, 2019.

  1. Jul 12, 2019 #1
    jlb7254

    jlb7254 Bobtail Member

    19
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    Sep 21, 2013
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    Just replaced thermostats and water pump in this Mercedes motor radiator was replaced 2 yrs ago and motor was flushed 3 years ago with fan on loaded it runs 225 empty runs 190 thermostats are 180 what else can I do to get this motor to run cool
     
    jlb7254, Jul 12, 2019
    jlb7254, Jul 12, 2019
    #1
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  3. Jul 12, 2019 #2
    baha

    baha Road Train Member

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    You will have to pull a/c conn. and air to air cooler out of the way to see all the road dirt that is on back of them and then you can see whats on front of rad. then clean all of it so air can pass thru to rad. so it can run cool?Air or Water pushed thru from FT. or Back will only pile up road dirt and not get it out of the way so the air can pass thru to Rad.
     
    Last edited: Jul 12, 2019
    baha, Jul 12, 2019
    baha, Jul 12, 2019
    #2
  4. Jul 14, 2019 #3
    jlb7254

    jlb7254 Bobtail Member

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    Sep 21, 2013
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    jlb7254, Jul 14, 2019
    jlb7254, Jul 14, 2019
    #3
  5. Jul 14, 2019 #4
    jlb7254

    jlb7254 Bobtail Member

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    Sep 21, 2013
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    I will give it a try
     
    jlb7254, Jul 14, 2019
    jlb7254, Jul 14, 2019
    #4
  7. Jul 14, 2019 #5
    Intothesunset

    Intothesunset Road Train Member

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    Apr 15, 2019
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    It may be more effective to replace the radiator all together. Especially if it is original 15 year old radiator.
     
    Intothesunset, Jul 14, 2019
    Intothesunset, Jul 14, 2019
    #5
  8. Jul 19, 2019 #6
    jlb7254

    jlb7254 Bobtail Member

    19
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    Sep 21, 2013
    0
    Radiator is 2 years old truck has always run warm but never this hot When we flushed system what came out was every color but green and when we spray water through the condenser and air to air it still comes through the radiator
     
    jlb7254, Jul 19, 2019
    jlb7254, Jul 19, 2019
    #6
  9. Jul 28, 2019 #7
    I glide 47

    I glide 47 Road Train Member

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    Jun 3, 2017
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    Test the charge air cooler for a leak
     
    I glide 47, Jul 28, 2019
    I glide 47, Jul 28, 2019
    #7
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