Possible Oil Cooler issue - Ford Powerstroke Diesel Forum
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Old 07-25-2014, 04:00 PM
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Possible Oil Cooler issue

Hi Guys,
Just wanted to see what you guys thought. I was out for a drive this afternoon with an outside temp of close of around 100; My ECT was 198-200 and EOT got up to 230. Question is, how concerned should I be?

Thanks,

Last edited by randycarnley; 07-25-2014 at 04:12 PM.
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Old 07-25-2014, 04:36 PM
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Concerned. Does it have the original EGR cooler? What coolant are you running?
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Old 07-25-2014, 05:12 PM
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Purchased the vehicle used two years ago with 70K miles on it from a Ford Dealership. I am going to assume the cooler and EGT are original. I've have not changed the coolant, but have put in Ford OEM gold coolant for any top offs since the gold appears to what was last put in.
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Old 07-25-2014, 06:09 PM
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Probably too late but if you want to take a shot at saving it, but the system flush from International, follow the instructions fully and be very carefull to flush out all the flush, then refill with an ELC coolant (and distilled water) as specified by the original engine designer.

The flush is a mild acid that may partially unblock the cooked-down gunk that builds up when coolants with silicates get super heated in the EGR cooler, clogging it and flowing into the oil cooler.

It may not work, but I wish I had known to try this before the EGR cooler failed. I ended up doing the flush anyway but as part of the job to replace both coolers.
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Old 07-25-2014, 06:11 PM
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You mentioned top-offs, are you losing fluid regularly?
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Old 07-25-2014, 08:27 PM
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Not really loosing fluid, just pick some up a while back before I made a cross country trip in order to top off all the fluids
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