Doing a oil cooler on a 6NZ and when I took the old one off this is what it looked like. I have done a few over the years but never seen one that looked like this. It was mixing oil into the coolant. So I am going to flush.
Customer has been running green coolant and wants to go back with Red ELC. What are your opinions on this? Truck shows 800k on the odometer. Probably 1.8 million.
Oil Cooler 6NZ
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Smellfunny, Apr 13, 2024.
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Never seen one look that way…all the tubes are usually very close in length and square ended. Can you tell if it’s some cheap aftermarket or maybe the pictures just make it look weird
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It has what appears to be a cat sticker on it. You can't read it anymore. The one thing that we found odd was that there was anti-seize on the 4 bolts that hold it in place. Fresh anti-seize. Maybe he had a water pump go bad and someone damaged it then. I will ask the customer when I see him.
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