Apples

Interesting factoid: When I was looking for the model year 2016 factory, auxiliary transmission cooler (and oil-to-air unit in front of the radiator/ac condenser), I noticed that the 5.0-equipped F150s in that year were factory-equipped with a transmission fluid *heater*. No kidding. Perhaps the torque produced by the EcoBoost engines precluded the fluid heater installation on those trucks. Who knows.


I think your deep-sump pan a good idea. More fluid doesn't hurt, it only costs more to replace thr fluid due to the increased volume. (every 150,000).

Apples

* except in cases where ground clearance is desired. Deep sump with a custom skid plate? just allow airflow between the two.


Edited to add: that hotlink was not put there by me. Must be a forum software thing, and I don't dig it.

Topher Wayne

Hey thanks for the reply man, but read my info and maybe you can help me out?
Bought the truck from ford used, towed just fine except when i hit a few large hills. Did research and found everybody saying i had a tranny cooler aux, but nope! Heres what i did:
1. Installed a factory 4 fin teanny cooler (looped into rad coolant in tank"
2. Installed a 170 degree thermostat
3. I plan to install the deep pan with a plug for the tranny
4. I also plan to install the tranny tstat mod ive heard about, what do you think?

Apples

I thought smokeywren clarified that oversight for you. Didn't he? Post #26...

Quote:

2018 and 2019 F-150 with max tow pkg all have an auxiliary tranny cooler. But it's not the oil-to-air (OTA) heat exchanger of earlier models. So there is no heat exchanger in front of the radiator. Instead, there is an oil-to-water (OTW) heat exchanger behind the tranny.. Works fine, but to see the OTW cooler you have to crawl under the truck and look up behind the tranny. And no, it doesn't look like a small radiator. It looks like a metal enclosure (bucket?) with coolant lines going to and from it.

I don't have anything more to add, Topher. "Man's got to know his limitations." - Harry Callahan

Flamingtaco

I agree with the sentiment that there's no reason to try to run these transmissions at cooler than stock temps. They appear to do just fine at Ford's intended operating temps, and running them cooler can only serve to increase gas consumption, especially in any situation where you add more oil to the transmission via a larger pan. If I'm going to add more oil (and weight and cost) to the system, it's going to be in the form of a larger oil to air radiator to keep max temps at bay when towing up grades.

danlexani

have one in mind yet? interested in some options too...

Blackbuzzard

Yesterday going up steep dirt Utah mountain road slow with 3000 pound trailer, very warm weather. Using M manual mode gear select helps, but not that much Notice analog temp gauge shows everything fine and far from red zone.

Just using a truck as a truck. 5.0 2016 6speed 3.55 and trailer package from Ford.

Flamingtaco

The needles are designed to not move much until close to overheating, because apparently constantly moving needles scares or confuses people. The needle remaining in the middle of the range does not mean the transmission is well within operating temp. 230ºF is the very upper end of the recommended operating range, a linear needle display would be sitting on the edge of yellow.