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Old 10-29-2013, 08:03 AM   #11
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Join Date: Jul 2011
Location: Flagstaff, AZ
Posts: 1,893
Re: Bullet Proof Diesel Engine Oil Cooler and Aluminess Bump

Sounds like you took it to the right place. The BPD FICM is also on my wish list for peace of mind.

I really like the custom 65rwhp tune I had written for my rig.

2005 E350 RB 6.0 PSD for extended fun
1989 Landcruiser FJ62 for local fun
2011 VW TDI Golf for hwy fun
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Old 10-29-2013, 10:15 AM   #12
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Join Date: Jan 2009
Location: Corvallis, OR
Posts: 5,091
Re: Bullet Proof Diesel Engine Oil Cooler and Aluminess Bump

Originally Posted by PatO
I have the round EGR cooler and failures are very rare on that and it is not currently on the replacement list. It doesn't have the radiator fins like the square one does.
They still do fail though, and when they do, it isn't as apparent as the square style. They crack at the welds, so the coolant leak isn't bad compared to the square-style. The first 6.0 I did major work on had the round-tube style. It came in because the intercooler exploded. Root cause: super rusty turbo because of the leaking EGR cooler. It drove fine, other than needing frequent EGR valves, but his local dealer kept throwing EGR valves at it, never really digging deeper (leaky EGR cooler causes sticky sludge formation on the EGR valve). It lost all boost when the sticky turbo made end cap blow right of the rest of the intercooler. Root cause of them failing is still the same though.... lack of coolant flow from an obstructed oil cooler. His truck had "grellow" coolant because jiffy lube kept topping off his yellow coolant with green. And the new "grellow" coolant was full of tapioca since the silicates were precipitating out. Not much sand though, so it had clearly been flushed before, and it only had 78,000 when this all happened.

2000 E450 dually V10 wagon
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