6.4 Powerstroke and 5R110 Questions

[coosacounty]

Just picked up a 2008 F350 king ranch SRW truck with 342,000 miles that has had the EGR and DPF deleted and 5" exhaust. I bought this truck from a dealer with absolutely no previous knowledge of what's been done to it or what tune it has. But this truck looks and runs amazing. Absolutely no leaks, no noises, no blow by, no lights, or exhaust leaks that i can find. Alot of new and reman parts under the hood. Who ever the previous owners where they took great care of it and didn't molest it with a bunch of crap. I'm not new to tuning but new to diesel tuning and willing to learn.

I'm not really impressed the the trans 4-5 shift point and the shift pressure seam just a touch to snappy for every day running around but looking at the shift point there's no 4-5. I'm also having some PATS problems ( sometimes the truck is not recognizing the keys and will lock out the starter) and want to just remove it but the the description par said that it may not disable all models. Is the there another trick to disable in HPT for PATS?

I don't want to add a crazy amount of HP and stress out the motor / trans but mainly having a ultra smooth tune that's well mannered and capable of towing my camper and trailers. With this tune it has now, I'm getting 20.5 mpg ( speedo is correct and mpg was checked by dash and fill refill milage calculations) over a 700 mile 3 day trip of highway/ backroads/ and so stop and go town trips.

The trans issues is that it won't shift into 5 until i get to 52-53 and when your in a 45 mph zone and in my driving habits ( old man cruising ) i really personally want it at shift into 5 around 45mph easing around. Then I'm going to setup the Tow button for the firmer/ little higher mph shifts.

Here's my as is file i pulled this morning that I've been comparing to other ones on here.


F350 base tune.hpt

[Bronco73idi]

Pats is an issue with the early build trucks, you cannot tune it out. The antenna at the ignition switch is wired to the instrument cluster and the instrument cluster talks to the ecm via high speed CAN bus. The ECM then grounds the starter relay if neutral safety switch and key are good.

I have cut the wire from the ecm to the Starter relay and grounded it, mine will start in any gear, no neutral safety switch.

The shift you are referring too is 3-5, 4th is only used in low temp conditions, under 10 degrees F i believe. your 3-5 without tow haul should shift at 40mph per the tune you posted, unless you are over 500 on the TPS (accel pedal) you need to graph your area of concern and go from there.

my truck is cummins 12V with the 5R110 so I tune my shift points and torque converter lockup.

[coosacounty]

Pats is an issue with the early build trucks, you cannot tune it out. The antenna at the ignition switch is wired to the instrument cluster and the instrument cluster talks to the ecm via high speed CAN bus. The ECM then grounds the starter relay if neutral safety switch and key are good.

I have cut the wire from the ecm to the Starter relay and grounded it, mine will start in any gear, no neutral safety switch.

The shift you are referring too is 3-5, 4th is only used in low temp conditions, under 10 degrees F i believe. your 3-5 without tow haul should shift at 40mph per the tune you posted, unless you are over 500 on the TPS (accel pedal) you need to graph your area of concern and go from there.

my truck is cummins 12V with the 5R110 so I tune my shift points and torque converter lockup.

So i got some free time while sitting in a hotel for work and adjusted the trans tune. Shuffled most of the shifts points, added 3 gear lock up, and adjusted the tow/haul shift point and lock up, and dropped the pressure some. Check it out and let me know what you think. I have not loaded and tested yet because im out of town but ill have a update later in the week when i get home

[stroker3.0]

6.4l TCM TUNED.hpt your welcome to copy off of this tcm tune