acadianbob

That's because it is NOT a gauge. It is really an idiot light. The "gauge" is "managed".

FrozenTundraGuy

When I was in WY years ago, towing a 5ooolb travel trailer with my o6Screw with 5.4 and trailer tow pkg up a 6% grade for about 3-4 miles-it hit about 215. It was hot, about 90 degrees and came back down after I crested the top. It's about normal. If you're really worried, use synthetic motor oil and turn the A/C off when climbing. I also changed to Mobil 1 ATF to handle any higher trans temp. Truck ran great with no issues. I have an ScanGauge II to monitor engine load and radiator to monitor this items better than the factory gauges.


The mountain I was climbing up was 11,000 ft.

j20brett

Id like to add my recent experience to this thread, FWIW. Towing with a '13 ecoboost SCREW FX4, 3.54 gears.

I towed my 30' TT, 7400# dry, 8600# max trailer weight (im pretty sure we were real close to the max number) from Houston, Tx to PA. Ambient temps were in the low 90s coming up 81 through virginia. I was monitoring the engine coolant temps and intake air temps with the torque app. I was towing in 5th and 4th gears the majority of the time.

While under heavy boost (11 to 12 psi) in 5th gear, engine temps would climb from 210 to 230ish by the time you crested a decent grade. Intake temps were consistently 3-5 degrees above ambient. this was pulling from 65 to 70mph. I noticed that the "idiot" dash temp gauge does not move from its "normal" position until temps start getting over 230. But, it starts to move quickly once you get past 230. At 235 to 240, is to the middle of the gauge and maybe a hair past middle. I never allowed it to get over those temps.

Now, when i downshifted to 4th, i could maintain 60 to 65 mph at 7 to 8 psi boost and keep the coolant about 225 for any length of grade.

I ended up managing my speed/boost to keep temps down on long, steep grades.

Eric Kleven

The more reports I hear about the engine temps on a hard-working Ecoboost, the more I think there isn't an engine on the planet that needs water injection more badly than the Ford Ecoboost. There's just way too much talk about guys hitting 230+ coolant temps, and that's a LOT of heat.

NC F150

For me, the ultimate torture test was when Ford towed a race car around homestead at full throttle for 24 hours. If that didn't overheat it, what will?

While 230 seems high to me as well, it doesn't seem to effect these ecoboost.

Eric Kleven

I'd still water-inject one, 'cuz MOAR BOOST!!

Hope they don't have the flaky coolant pressure caps that the 5.4/6.0/6.4/every other ford for 20 years had.



Now, on that Homestad test, did Ford say what octane/brand of fuel they were running?