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post #1 of 10 Old 03-31-2013, 10:08 AM Thread Starter
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EOT Temps in and...

Well after an hour of driving today empty this is what I have with my new scangauge. EOT Temps in and...-imageuploadedbyautoguide1364753123.297357.jpg
Yesterday was my first trip with the scangauge and towing 10k, the highest eot was 258* and ect was 218*. When the eot hit 258* the truck went into limp mode. Any suggestions?


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post #2 of 10 Old 03-31-2013, 10:14 AM
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Your oil cooler is severely clogged time for a coolant flush and a new cooler. A bpd kit would be a good investment.

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post #3 of 10 Old 03-31-2013, 10:15 AM
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Replace the oil cooler. Either with bpd or a new factory one. Unloaded at 65 it should not be over 15.

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post #4 of 10 Old 03-31-2013, 11:54 AM Thread Starter
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I think when I do my egr delete here in a few weeks, I'll put a new factory cooler in. It still has the ford gold coolant so just to be clear, I should flush the system before I put the new cooler in right?

Also just out of curiosity, what are the effects of high eot's?

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post #5 of 10 Old 03-31-2013, 02:56 PM
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Yes flush it and flush it and flush flush flush. Then drive the truck for a week or two before you put the new oil cooler in it. I also highly recommend a coolant filter.

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post #6 of 10 Old 06-13-2013, 01:29 PM
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What was your cold soak numbers? The first code I put in my scangauge read 40* high on cold engine.

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post #7 of 10 Old 06-13-2013, 04:46 PM
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Quote:
Originally Posted by jtheado View Post
Also just out of curiosity, what are the effects of high eot's?
High EOT's are caused by plugged coolant passages within the oil cooler. The plugged coolant passages will overheat/slow the coolant flow exiting the oil cooler.
The coolant that exits the oil cooler is directly fed to the egr cooler. Hotter and slower moving coolant through a component that is designed to cool the extreme heat from exhaust gases that are re-directed back into the air intake is not a good thing.
The egr cooler will overheat and eventually it will fail internally (if it hasn't already). This will cause coolant to leak into the air intake stream when the egr valve opens. There may be sufficient coolant sitting behind the egr valve to cause the head gaskets to blow (this is what causes the typical blown head gasket in this engine).

When you park your truck tonight (or if it is already parked), remove the egr valve from the intake manifold and leave it out overnight (truck parked on a decline). In the morning, check the hole for the presence of liquid.
If you find liquid, (or the soot in the hole is the consistency of grease) the egr cooler has already popped. If it has popped already, I strongly recommend parking the truck until you can begin repairs.
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post #8 of 10 Old 06-13-2013, 04:54 PM
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Quote:
Originally Posted by rdaffin View Post
Replace the oil cooler. Either with bpd or a new factory one. Unloaded at 65 it should not be over 15.

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IMO go with the Bullet Proof Diesel cooler. I did and the truck couldn't be happier (96* oat today pulling a 6 horse trailer full of construction trash, in the mountains and the highest I could get was 206* on the eot and 202* on the ect). I went ahead and ran their water pump and radiator as well.
Ok before anybody beats me up about the delta spread dosnt matter anymore with the bpd set up...ya I know. But I still watch it.

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post #9 of 10 Old 06-13-2013, 06:04 PM Thread Starter
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Quote:
Originally Posted by bjs505 View Post
What was your cold soak numbers? The first code I put in my scangauge read 40* high on cold engine.
Sadly, I found this out to late. I didn't even think about this issue so I did a coolant flush on an oil cooler with healthy deltas, causing it to plug up. So after finding this out after I flushed it and increased the deltas, I was pretty upset to have to order a new oil cooler considering I ruined the old on from scangauge's mistake in codes.

On the upside, I know it's all good now but to me, it was wasted money at the moment when I basically fixed what wasn't broken.


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post #10 of 10 Old 06-13-2013, 06:08 PM Thread Starter
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Quote:
Originally Posted by kinnisoj View Post
IMO go with the Bullet Proof Diesel cooler. I did and the truck couldn't be happier (96* oat today pulling a 6 horse trailer full of construction trash, in the mountains and the highest I could get was 206* on the eot and 202* on the ect). I went ahead and ran their water pump and radiator as well.
Ok before anybody beats me up about the delta spread dosnt matter anymore with the bpd set up...ya I know. But I still watch it.
I couldn't justify spending that much when all the truck basically does it hauls me and 100 gallons of fuel around in the summer and plows snow in the winter. Especially when I can only get 4 years out of a truck before its so rusted out I have to send it down the road!


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2006 F250 ECSB 4x4 Lariat
168k Miles|FICM by Ed w/ Atlas 40|SCT X4 with Tunes by Vivian|MBRP 4" TBE|Zerex ELC|EGR Delete and Coolant Filter by Custom Diesel|ARP Studs|OEM Gaskets

2008 F450 CCLB 4x4 XLT
141K Miles|Bone Stock for Now...
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