Oil in coolant.

[1997F-250HD]

Oil in coolant on a 05 f-350. Guy says he had the oil cooler replaced a couple thousand miles ago for same thing. They probably didnt flush the coolant system well enough and ruined the new one. Was just wondering what u guys think also. Should I look into the possiblity of a blown headgasket also?

Thanks
Nathan

[1997F-250HD]

I was leaning toward the cracked head also. He says the truck runs like crap when cold but when it gets up to temp it runs fine.

[WildStyle]

Perhaps just residual oil?

[mhatlen]

I would pull thermostat and put in a cup of dishwasher soap and take for a 20 mile drive and flush. Simple Green is also a good grease cutter and will clean it as well.
Try that and see if it was just not cleaned out properly from previous oil cooler failure.
Flush out well and then do a final run and drain with distilled water.

[1997F-250HD]

No its not just residual oil its a complete milkshake in the coolant tank. I have instructed him to stop driving it. He is dealing with the shop that previously did the work. If they dont stand by their work. I will take care of it for him. Its only been like 3000 miles since the oil cooler was replaced for the same problem.