I tried searching for my answers but still confused.

Ok look I’m really new to this and dumb with gas trucks so break it down for me. I know there will be alot of art *** remarks and commentary but ok just looking for help in understanding this.

I got new tires, 1 size up to 275/65r18 from the factory 265/60. My dealer told me to use forscan to reset circumference to the new MM to fix the speedo being off which I know how to do and have done on other vehicles.

What is stumping me is the transmission relearn. Can I just clear the learning tables with forscan and drive the truck or do I need to follow the step by step instructions and do it 6 times per the manual to get the truck to relearn? This is what I cannot find a definitive answer on. There is nowhere close to me that I can stay on a flat level surface to perform the stop to 55 and lightly brake parts of the learning.

 

You can just clear the trans adaptive learn with forscan or FDRS.. This has all ways worked for me.. i am unfamiliar with 6 times reset.. maybe some else can update on that reset procedure.

 

The six times he is referring to is Fords relearn process not the reset itself. Most people including myself just drive normally after a reset.

Ford's official relearn process is as follows.

1. Using the scan tool, clear the DTCs (Diagnostic Trouble Codes) and Transmission Adaptive Tables.
   
2. Drive the vehicle until the engine and transmission reach normal operating temperature.
   
3. Accelerate from a stop with light throttle (15%) ensuring that upshifts 1st through 8th occur at engine speeds between 1300-1600 rpm.
   
4. Continue to accelerate (may apply slightly more throttle after 7-8 upshift at 32-38 mph (51- 61 km/h) until you achieve 55 mph (88 km/h) and the 8-9 and 9-10 shifts complete.
   
5. Brake very gently to a complete stop and hold foot on brake for five (5) seconds.
   
6. Shift the transmission to Neutral. Wait 1 second.
   
7. Shift the transmission to Reverse. Wait 2 seconds.
   
8. Shift the transmission to Neutral. Wait 1 second.
   
9. Shift the transmission to Drive. Wait 2 seconds.
   
10. Repeat Steps 3 through 9 six additional times.
    

 

so clear tables and drive it. Got it. Should I be conservative or drive it like I stole it normally lol

 

seems like that's a pain. I have just cleared and drive normal.

 

You should be conservative and its best if your in an area that will allow the transmission to shift through all gears.

 

There is more about these tables than is being spoken about.
The adaptive tables, >>one for each drive mode<< registers drive data for more than just the default mode.
When a clear is done, they all are cleared.
The relearn is not aimed specifically at driver action but at the Wear of that individual transmission that occurs from each drive cycle over time no matter who is driving.
Again, it's the wear and changing characteristics of the Trans that is reflected into the tables.
Right from Ford Documentation on the 10R80 and a search answer to the question.
Good luck.

 

Think about it..... There's not a single ford technician that's going to do this procedure.
Do the relearn and drive it normally. It'll be alittle rough in the beginning but as the new tables are build and recorded it'll get better and better.

Same with checking the transmission fluid level after a fluid change. You have to get the fluid up to operating temp to check the fluid level properly. 100% according to ford manual.
Well after a fluid change it takes driving the truck around for 15-20 minutes to get the fluid to the proper temp. 45-60 minutes if you let the truck idle till proper trans temp.
The problem is the Technicians don't get paid enough to spend that much time on the job.

 

If you have a lift, put the truck in gear and hold the brake and give it some gas, then do it in reverse. That will get heat in the trans quicker than the driving around. It took me about 20 min doing this every 5 mins or so a couple of times, then once it gets to 203, I get under the truck (with my grill gloves on!) and do the level check and add if needed.