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Discolored Coolant

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Old Jan 9, 2012 | 09:29 PM
  #1  
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Discolored Coolant

Six months ago i replaced egr cooler and oil cooler with factory parts. Then couple of months later truck started pushing coolant out the degas bottle done a coolant flush and still under a load pushing coolant out the degas bottle. Then replaced the degas bottle and radiator cap and no change. Noticed this weekend when i checked the coolant that it looked a little discolered and smells like fuel and not slick like oil. I need all the input that i can get to try to get this problem fixed.
 
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Old Jan 9, 2012 | 09:41 PM
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I'd confirm that it is indeed diesel in the coolant, because I believe that may mean you have cracked cylinder heads or damaged injector cup.
 
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Old Jan 9, 2012 | 09:48 PM
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You need new heads Sorrey Bud

Good chance that the injector cup is leaking or a head is cracked

I dont know what else it could be

Sounds like it filling up with diesel and puking cuz the coolant leval is too full

Might as well do ARPs and OEM headgaskets

Sorrey I know it wasnt what you wanted to hear
 
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Old Jan 9, 2012 | 10:39 PM
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By the sound of it, the best you can hope for is a combustion leak. Either way looks like you will be pulling heads. Test,verify,repair.
 
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Old Jan 9, 2012 | 11:12 PM
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You said discolored but didn't mention the color... Does it look like chocolate milk? Did you actually pull a sample and look at it though glass? If so did you notice a layer or something floating on top or sinking to the bottom of the coolant? Smelling like fuel is a bad thing but you might as well investigate all the way before you start pulling off parts.
 
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Old Jan 10, 2012 | 06:43 AM
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The degas bottle is below the minimum line but seems to have to pressure at all times. Then truck sits over night what ever is in the coolant settles to the bottom of the degas bottle but it is not milky looking.
 
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Old Jan 10, 2012 | 06:48 AM
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Does it smell/taste like diesel?
 
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Old Jan 10, 2012 | 07:21 AM
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when you changed the oil cooler and egr cooler was it because oil cooler gave up the ghost? if so was the oil properly flushed out of the system, if not it tends to clog up the new oil cooler and cause the egr cooler boil away the coolant in the egr cooler casuing your puking degas bottle. i know you said you recently did a flush, but if it already made it to the new oil cooler it is most likely toast, you will need to verify if it is indeed diesel in the coolant before proceeding.
 
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Old Jan 10, 2012 | 08:58 AM
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Egr cooler went and i just replaced both at that time.
 
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