Medium and Heavy Trucks
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is there excess pressure in the cooling system??? did you check the egr cooler for any presence of coolant???
how did you check the egr cooler???
ok, assuming that it is ok, the other thing I have found is a bad air compressor. I would bypass the compressor hoses and see if it still happens.
white smoke is coolant, not fuel, fuel is black. yes, I think it is coolant
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the engine will not fail if it is coolant. it may be a small amount that is laying in the top of the air compressor head. it just may take time to burn off the coolant. if I am right, it will not stay the same and will get worse very soon