'16 Questions - Ford Powerstroke Diesel Forum
General 6.7 Discussion (2011-2016) General 6.7 Discussion

 
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post #1 of 3 Old 09-18-2019, 11:17 AM Thread Starter
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'16 Questions

I recently got into a 2016 F250 XLT CC SRW. I have had it for about 3 weeks now and absolutely love it. I am however having a few questions concerning this new beast. I came from an 05 6.0. Essentially the exact same truck only 11 years older so obviously the different motor platform.

I have zero intention of deleting or tuning or modding this truck in any way at the moment. the truck has 66K+ miles on it at the moment. I have a Edge CTS2 monitor in it so I can see all my information.

It has been unseasonably warm here in West Central Missouri so I have been chalking some of these readings up to it just being hot outside. I have noticed occasionally my EOT and ECT will get about a 14* or 16* delta. I know in the old 6.0 that was signs of EGR trouble or right at the border of it. Does that 12* delta rule still apply in these 6.7 motors or is that something not to concern myself about?

Also a new trick this morning this truck did to me was it through an alert for Exhaust back pressure. On the monitor it was reading 34 and 36. I'm not sure what those numbers mean or if that's even how they should be relayed for information. I was lugging the truck more than normal and was going up a curve on a hill with light throttle, again causing the truck to lug a little. Got on the throttle more and the EBP started to go down and have had no problems with it at all since. Just curious for some info on what the EBP tells me and why its important for monitoring.

I love this truck so far and am looking forward to driving the wheels off of it for the next several years. Please share any info or quarks you have noticed in these trucks for strictly stock stuff
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post #2 of 3 Old 09-18-2019, 12:36 PM
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This has been an exceptionally hot summer this year. You are not the only person noticing higher than normal temps. This past July when I made a trip to Boulder, CO and traveled along I70, My oil and coolant temps seemed high when towing the 5th wheel. Once I dropped the trailer, temps did come down. Oil was in the mid 230's and coolant in the high 220's. No load back to 215 oil and 205 coolant.

Larry

2015 F350 Ultra Lariat 6.7L CCLB DRW 3.73 Limited Slip, Green Gem Metallic w/ Caribou accent, Camper Package, Titan 65gal tank, Rapid Heat, Block Heater, Upfitter Switches, Dual Alternators, Cable Lock, Husky Floor Liners, Spray in Bedliner, 5th Wheel Prep, 25K 5th Wheel Hitch, Ford Goose Neck Hitch.

Traded 2011 F350 XLT CCLB SRW 6.2L gasser 6,000 miles for 2015

Sold 1996 F350 XLT CCLB DRW 7.3L 208,000 miles
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post #3 of 3 Old Today, 11:30 AM
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Just an FYI, the oil delta rule of thumb for 6.0's is not applicable to the 6.7.

In the 6.0, coolant would flow through the oil cooler, and then flow to the EGR cooler. So a plugged oil cooler meant little to no flow to the extremely hot EGR cooler, and with stagnant coolant in the EGR cooler exposed to upwards of 1K Farenheit exhaust gases, the coolant in the EGR cooler would flash boil and rupture the cooler, allowing coolant into the intake.

The coolant paths through the EGR cooler and Oil Cooler on the 6.7 are not tied together, so temperature differentials between coolant and oil, while indicitive of oil cooler performance, pose no risk to the egr cooler popping.

Furthermore, as long as your oil temp stays below 250 while towing heavy in hot weather, you don't really need to worry about engine damage from hot oil.
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