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  #1  
Old 09-08-2011, 03:33 PM
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New Oil Cooler, Still 35+ Delta

My '04 6-liter has been down since july. I did a coolant flush and my eot/ect deltas went sky high.

Took the truck to a shop that was on the bulletproof diesel website and the guy isn't too great of a mechanic. He changed the EGR cooler to a BPD cooler, with an oem oil cooler. Didn't clean the intake manifold, even though I asked for it. So, 2 weeks ago I test drive the truck, still seeing eot around 240+. But this is on the first drive after only about 10 miles.

Is it possible it plugged up that bad, that soon? Or is it possible that it's just a bad oil cooler from ford. Now the one I got from BPD wasn't just the rebuild kit, it was the housing and all.

I've talked with John and the guys at BPD and the only thing we can come up with is oil cooler. Anyone have an insight into this? I've already told the mechanic not to work on my truck anymore, because honestly I don't trust the guy.
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Old 09-08-2011, 03:37 PM
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possible the flush clogged the oil cooler?, you should flush b4 replacing it so it wont contaminate the new one. Just a idea i can think of..
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Old 09-08-2011, 03:49 PM
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I flushed the hell out of it. The mechanic didn't bother doing a flush because he felt I did a good enough job. My flush was done before the oil cooler was replaced.

But can the new cooler clog up with 10 miles of being replaced? I would have gone with the BPD oil cooler kit, but I just can't afford it.
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Old 09-08-2011, 04:02 PM
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Have you tried to do a reverse flush?
Its something like sticking a hose in oil cooler coolant port if you remove the egr coolant part. There is a write up somewhere on here.
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Old 09-08-2011, 04:04 PM
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No I haven't tried it yet. I still have to go get the truck from this guy. So far I'm $2,000 into this and back at square one. Not to mention I have to spend $1,700 that I don't have, to have another shop change the oil cooler.

***edit***

I just called another shop, who I really trust and explained the situation. Right away he said it sounds like I have air in the system and that I need to drive the truck for a few miles and see if it improves

Last edited by Fantom; 09-08-2011 at 04:34 PM.
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Old 09-08-2011, 04:29 PM
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What are your temps again. Does the coolant temp get really hot or is the oil temp just climming. Something makes me think about water pump not flowing... During the flush you did, did you do the correct order of cleaning? Gel/silicate remover then the rust/scale remover or did you do it backwards... Backwards could have caused a chunk of something to block flow. I wish I was nearby to help. I'm in ohio for another week yet. If you could get it somewhere I could take a look at it but i'm no professional. I just finished my headgaskets last month and everything has been running good for two weeks before I had to leave.
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Old 09-08-2011, 04:38 PM
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I'm seeing ECT around 197-204* and EOT 240*+ I did the silicate flush first, then the rust/scale flush second. I'm going to get the truck tomorrow and drive it and see what we come up with. The water pump was something else that was mentioned, although it was working problem free before this. So I dunno. I'll drive it a little while, see how it does and then maybe put in a new water pump and see if that solves the problem.
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Old 09-08-2011, 04:39 PM
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Do you remember your delta before this all happened?
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Old 09-08-2011, 04:42 PM
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before the flush I was seeing 197-205* ECT and 218-228* EOT
after the flush I was seeing 197-205* ECT and 240*+ although I only drove it about 10 miles
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Old 09-08-2011, 04:45 PM
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i dont think its your waterpump, something is blocking the flow to your oil cooler, make sure the antifreeze is topped up, put your heater on high too see if this helps. Its always a possibility but the waterpump on the 6.0 really dont go bad that often. spending 2K, id want my money back or havem replace it for you free of charge, something isint right
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