2009 Prostar Coolant Leak Mystery Please Help

Discussion in 'Trucks [ Eighteen Wheelers ]' started by 68Goat, Oct 4, 2013.

  1. Grey Dodge

    Grey Dodge Light Load Member

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    May 16, 2012
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    Yeah, you're right, mine only did it when it was warmed up.
     
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  3. 68Goat

    68Goat Light Load Member

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    Jan 4, 2013
    Watkinsville, GA
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    OK Everyone...Can't thank you all enough. It was the EGR cooler and it's being replaced right now. Got the computer hooked up yesterday, finally, and had over 100 code trips for the cooling system. Once again, thanks for all the advice and directions. It helps small companies like us out immensely.
    68 Goat
     
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  4. Heavyd

    Heavyd Road Train Member

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    Make sure you change the oil and the crankcase filter too, they will now have coolant contamination. You should also have the EGR valve removed and cleaned out. It will be full of junk.
     
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  5. 68Goat

    68Goat Light Load Member

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    Jan 4, 2013
    Watkinsville, GA
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    Yes, Heavy, wil do. There was some evidence of coolant in the oil as well.
     
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  6. no love for a trucker

    no love for a trucker Light Load Member

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    Jul 28, 2013
    Greensboro, North Carolina
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    Hey Heavy D,

    I have a question for you when changing the coolant/water filter just underneath the water pump on my 2009 international prostar 435 IS Cummins Engine do I have to be concerned with any coolant coming out? Here's my Vin#2HSCUAPR89C088630.

    Thanks
     
  7. AModelCat

    AModelCat Road Train Member

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    IIRC there should be a little shutoff valve on or just above the filter head. I believe its installed into the casting itself.

    @Heavyd would know for sure.
     
  8. Heavyd

    Heavyd Road Train Member

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    Yep, just a little shut off tap right above the filter. Some have a lever, others take a 3/4" socket to turn.
    coolant.jpg
     
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  9. no love for a trucker

    no love for a trucker Light Load Member

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    Jul 28, 2013
    Greensboro, North Carolina
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    Thanks Heavy D you the man
     
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  10. flood

    flood Road Train Member

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    oil sample at evey oil change.... it would show the cooler going bad 20k-30k ago....

    last time I had a egr cooler go bad it showed up in a oil sample 24k before it went out
     
  11. tax

    tax Light Load Member

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    Nov 29, 2013
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    What did it show on oil sample, coolent in the oil or something else
     
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