Quote:
Originally Posted by lolo
If you decide to replace your oil cooler I think you should completely clean your coolant system and add a coolant filter before you replace the oil cooler. My 6.0 was running way to hot delta t between EOC and EOT were very concerning. I believe I have resolved the problem with out replacing the oil cooler by doing a multiple stage involved flush of the coolant system. I don’t think it makes sense to replace the oil cooler with out first cleaning your coolant. I can detail the process I went through if you are interested.
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Thank you, yes I've been flushing it(driving it till operating temp, drain and refill).... have done like 7 times so far. Will do some more until i get clean fluid coming out used DAWN Dishwashing liquid too.
Will be doing the heads too, truck runs fine no overheating but when i pressure tested the cooling system, i noticed exhaust pressure at WOT in cooling system. Have no other symptoms.