I just got my torque app and odb Bluetooth yesterday so after setting high temps (in my opinion), I wondering who do has changed the t stat on a newer ecoboost (2017 and 2018) to keep temps lower. Would it be better to remove the shutters on the rad/cac? Seems hot and summer in Texas is right around the corner. My 2012 Silverado never really had that many issues but it didn't have turbos heating things up as well.

What are you southern folks doing in the newer truck for towing? Just drive and don't worry about it? Tstat are cheap but cac isn't.

Ignorance is bliss so can't claim not knowing now since I'm seeing all temps digitally now. I was surprised to see 212 tranny temps just diving around town.

 

Don't be surprised. The tranny fluid flow is now thermostatically controlled, and tranny temp over about 195° to about 210° is now "normal". Don't fret about tranny temp until you see over about 215°, and even then remember that the red line is 225°. At 215° keep an eye on it. At 220°, keep a VERY CLOSE eye on it. Don't allow over 225°

You should never see 225° unless you're trying to drag too heavy a trailer at too slow a speed up too steep a grade. Keep the speed up to over 45 MPH and the torque converter should stay locked and not create a volcano worth of heat for the cooling system to overcome.

 

Yeah, what he said. I made that mistake in my 14 towing up I-70 in CO and Utah and overheated the truck twice, trans temps hit 230, but the trans held up, towed several times after that, and put another 30K on it before it got smashed. My mistake was not locking out higher gears and having an EB with buttloads of power at altitude, it just pulled, but did not have the TC locked up. Locking out 5 and 6 solved the overheating.

 

I used to supplied PiD on the torque pro app which I noticed temps were the same on coolant and tranny. I found another PID that makes more sense as the 2 are now independent and much lower 190ish. Glad I found it, weird it was so high so easily. Coolant is 215 at the highest.

 

Good information by the way! Thank you!

 

In the Lariat and up, you can add the trans temps to the display with Forescan. I did that on mine and they are independent from each other. Usually after an hour driving the trans and water temps are within a few degrees of each other.

 

Did you not have a trans temp in your gauge cluster on your 14 acdii? I do, plus I can bring it up on the info screen between the speedo and the rpm gauges.

 

Yep, but discovered it after towing. DOH! I had the MPG thing displayed.

 

I just have the dummy gauges that have a needle that never moves. It's a base XLT but I choose it that way to get Max payload. 2038lbs