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Old 05-28-2013, 07:28 AM
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High Oil Temp

Hi everyone...I'm having a problem with high oil temp. The coolant temp is fine. I am getting temps up to 250 when pulling my camper (which is why I bought the truck in the first place). The truck runs fine, you wouldn't know it unless the tuner is plugged in to show the gauges. I have the dpf/cat and egr delete, but it was hot before the egr. I only use the 75hp tune.

I have had the oil cooler replaced, and flushed the coolant system. Any other ideas? Not sure what else to do...hate to keep throwing money at it.
Thanks in advance!
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Old 05-28-2013, 08:03 AM
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It could be the oil temp sensor. Are your coolant temp and oil temp close when you start the truck in the morning?
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Old 05-28-2013, 08:14 AM
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Oh, yeah..I forgot to list...Ive change the oil temp sensor as well. Did it first.

Yes, they are close at first...coolant actually warmer, then they cross over and the oil keeps climbing. Now it cools off on its on own when you let off throttle, its not a constant high temp, its goes with load on the engine.

Thanks for responding.

Last edited by Amosmoses33; 05-28-2013 at 08:22 AM.
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Old 05-28-2013, 08:57 AM
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When you changed the oil cooler the first time did you flush the cooling system? Maybe some crap broke loose and clogged the new oil cooler. I think it has to be something with the oil cooler. The temps should not get that high with the oil cooler working properly. Also maybe look into the BPD oil cooler half kit.

Bullet Proof Oil Cooler System, 2008-2010 F-Series, 6.4L Half-Kit
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Old 05-28-2013, 10:37 AM
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I took it the next morning for the flush.
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Old 05-28-2013, 11:01 AM
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I would guess that your new oil cooler got clogged
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Old 05-28-2013, 12:26 PM
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I hope not...I don't have money to replace another oil cooler.
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Old 05-28-2013, 12:32 PM
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The coolant would be hot if it were clogged though wouldn't it? Coolant temps are good.
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Old 05-28-2013, 01:03 PM
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I hope i am wrong but i dont see what else it could be. No the coolant would not be hot. The coolant temp would be normal and the oil temp would be hot because since its plugged coolant is not able to flow thru it and allow the heat exchange.
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Old 05-29-2013, 03:27 PM
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If the oil cooler is clogged the inlet would be hot and the outlet would be alot cooler. Check there to see if the cooler is clogged
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