Thanks Dave. Tool ordered . Reps to ya.

 

Nope, I do have to add air as the temp drops though

 

That tool will not change the set point for the TPMS warning light. All that does is train the TPMS sensor to the location on the vehicle.

 

If you are happy --- then so am I

 

I am neither happy nor unhappy. I am just telling you what the thing does.

 

I have not had a chance to try the retrain.

I'm sure if i brought it to the dealer they would want to charge me serious money and put up a stink about changing it I bet.

Did some major house renovations this week that consumed all my time. Will try this soon.

 

Hope your renovation goes well... Please post your results so that future readers will have a real answer. Keep in mind that the tpms triggers at some level below the OEM tire pressure - for example my 65psi front / rear setup will trigger the tpms at about 58 psi.

 

I've got a few out of town trips coming up starting next week, so I pulled out the owners manual looking for the training procedure as NoJoke stated. There is a TPMS reset procedure talked about on page 252, it starts out with the key cycling, pedal pushing yada yada. But then it introduces the TPMS reset tool half way through the procedure? How do we finish this procedure without the tool? Out researching the internet now.

Edit: Found this, not sure if it will work, says it does on F150's and i heard also on Focus cars: (TPMS starts about 4:20.)



A little conflicting with the manuals turn key, hit and release brake. Instead key on and hazards 6 times.

Some more reading material.... If you can't tell, im the type of person who hates having their dash lit up.
https://www.ford-trucks.com/forums/6...djusted-3.html

 

Looking for some input here as to what PSI i should run in my new Kumho KL-78's on my F250.

Currently I'm pissing off the TPMS (They call for 65 PSI) and I' currently running 50 PSI. My rims are the 20'' diameter (8'' wide) 8-spoke Lariat/King Ranch rims with 325/75/R20's on them. This size equates to a 35x12.6x20 americano.

They ride darn good where they are at, however with the salty roads here it looks as if the outer lugs don't have any "salt dust" on them like the center of the tires. This is true for the front and back. They are load range D as I rarely tow with this truck, if i do its a open car trailer with a 3K LB Fox on it.

The stock tires were 275/65/R20 which is a 34x10.8x20. (Originally had 37x12.5x20's when i bought it) I'm concerned to go much lower than 50 PSI.

 

What does Kumho recommend on their website?

 

Honestly not sure. I will check but I'm sure it's very frowned upon to mount this wide a tire on such a skinny rim. So they may not list anything.

 

Superchips Flashcal 1545 works on 2011-2015 TPMS systems.

 

I just got a Flashcal f5 1545 to use on a 2015 F250 FX4. It went from 245/75/17 to 35/12.5/20s and the air pressure went from 80 to 55 so of course the speedometer,odometer and TPMS was off. The flashcal seems to have worked on fixing all three. Dealership said they would do it for $140, but could not set tire diameter above 34". The flashcal was 199.00.

 

I wouldn't go below 50 on the road if max recommended is 65. I run Firestone MTs 35x12.5/20s at 55 on pavement and about 40 off road. I have a friend who is a shop owner and he sold me the tires. He runs the same MTs at 45psi on a 3/4 ton all the time. I'd like to know how many miles he gets out of a set.