Another Delta T thread

[Coach73]

Ok I've been keeping an eye on my deltas, doing the 15 minute drive (after engine warm up) at 65 I've been seeing 12 to 15* DT, I talked to a Senior Master Ford Mechanic about the TSB and he explained how to conduct it, I did 2 runs and saw 9* on the first run and 8* on the second. Today I hooked up a 16 ft car trailer and drove 2 1/2 hours each way, 75-80mph, rolling hills strong head winds that I swear I fought both there and back and I saw 20 - 22* Delta. Oil temp got as high as 222*. I'm definitely going to be replacing my oil cooler a lot sooner than I was hoping I had too. Coach

[2 stroker]

Yes i think your deltas are high, mine run ECT 192-194* EOT 198-200* solo when i pull my 14,000lb 5er in 90*+ weather on a 7% grade over 6 miles long ECT 218* EOT 228* and the fan sounds like a jet plane and the EGT run around 1300* and the trans 170-175* Boost trying to keep it under 28lbs Fuel pressure 58lbs WOT. Hope this helps.
2 stroker

[20046.0]

That is a large delta sucks man

[rebelranger]

How about 6-14 delta? ECT runs 180-190 and EOT runs 186-200. Typically it stays between 6-9 but occasionally runs up to 14 then falls back down to 6-9 then back up and back down. In town it seems to stay around 4-6 but the hwy it varies up and down. Anything to worry about or are 6-14 delta ok? I know everyone says under 9 is safe but the up and down on open road has me wondering

[Coach73]

Well I scheduled an appt. with the local Ford dealer to do my oil cooler replacement/egr delete. I'm providing the oil cooler, stc fitting, fuel pressure spring, new intake gaskets, new hot side turbo boots, they are welding up the egr cooler and doing all the work for $700. I thought that was a very good price!!! Can't wait to see how it does when I get it back. Coach.

[Coach73]

It's been awhile since I updated this, spent a couple weeks out of state, just got my truck back last weekend. Price went from $700 to $1100, that included coolant flush/fill (gold crap, will be changing that out soon I think), oil & filter, a couple boost hose clamps, new egr cooler to oil cooler hose kit plus some other small parts. So I now have a welded up egr cooler, new oil cooler, new stc fitting, blue fuel spring, new style turbo oil return line. My deltas so far have been 7 or 8 so i figure I cut them in half. Hopefully I'll never need to worry about them again. Oh and no check engine light, but i do have my wife convinced we need a tuner to get better mileage!! coach.

[dee004]

Good stuff coach. If you haven't already get a coolant filter on there ASAP and get the Ford gold coolant out before the new oil cooler is plugged. Cheers,

[lubbock guy]

you could still have oil cooler failure down the road. Only sure way to never have another oil cooler failure is BPD oil cooler.

Originally Posted by Coach73

It's been awhile since I updated this, spent a couple weeks out of state, just got my truck back last weekend. Price went from $700 to $1100, that included coolant flush/fill (gold crap, will be changing that out soon I think), oil & filter, a couple boost hose clamps, new egr cooler to oil cooler hose kit plus some other small parts. So I now have a welded up egr cooler, new oil cooler, new stc fitting, blue fuel spring, new style turbo oil return line. My deltas so far have been 7 or 8 so i figure I cut them in half. Hopefully I'll never need to worry about them again. Oh and no check engine light, but i do have my wife convinced we need a tuner to get better mileage!! coach.

[Coach73]

Originally Posted by lubbock guy

you could still have oil cooler failure down the road. Only sure way to never have another oil cooler failure is BPD oil cooler.

That is entirely possible but I am not willing to pay that much money on a truck that I'm not going to keep forever, as soon as I can trade up I'm going to, don't know if I'm going Ford again but I do like my truck, it's just not as "clean" as I like. Coach

[Coach73]

Originally Posted by dee004

Good stuff coach. If you haven't already get a coolant filter on there ASAP and get the Ford gold coolant out before the new oil cooler is plugged. Cheers,

I've got a PMM coolant filter installed, changed the first filter after 1000 miles, cut it open and it was clean as a whistle, new filter on now. I will probably run with this coolant for awhile, I mean I paid enough for it, you know what I mean? Coach