Huffy

Ok Guys I searched the forum and couldn't find an answer.I bought my 2010 screw from the dealer with 12k miles.For some reason it had the heavy duty 17 wheels with 12 ply tires.Two weeks ago I bought a set of 20" torque thrust wheels and had discount tire install a set of 285x40x20 falkuns tires on them.The sensors were set at 50psi and they assured me they could reset them to 35psi for the new tires.After having the truck ride rough for a week and having them replace the two rear tires I find out they just maxed out the new tires to 50psi to knock out the sensor.Talked to the dealer today and they say they don't know if they can reset the computer or not.Has anyone else had this problem or did I buy the only f*&^^truck with these wheels?

Huffy

Wow 82 views and no repliesI guess I am the only one with this problem

SultanGris

seems to be, I wouldnt think it would be hard to reprogram TPMS sensors, maybe the shop you took it too was full of cheap hacks, ask your dealer. I run stock tires but I know lots of people here have changed to aftermarket, I wouldve thought someone could help you. 50 psi seems excessive for a truck tire unless you are towing heavy loads though.

dcfluid

See your Ford dealer and they will tell you no, you can't change your tpms system to any other range of pressures. You are stuck with the factory pressure settings that were programmed to suit the tires the truck had when it left the factory.

SultanGris

really? i find it hard to believe they set them at 50 psi from the factory. You can just program them to different vehicles then? you cant change the pressure? seems strange to me.

dcfluid

The sensor is just a read only device in each tire. The tpms system in the trucks computer is what interprets that pressure info. The computer has an operating range between high and low settings of pressures that was preset at the factory according to tire selection.

Put this way : my neighbor bought his 2011 with 10ply tires and found them too rough. He changed to 6ply rating tires and has to live with the tpms light on because there is no way to change the pressure settings in the computer from the 10ply range the truck came with.

bcangelo

I know on my 11 superduty they can adjust them but only within certian parameters. I would contact a dealership and see what can be done. My BF Goodrich All-Terrains were 6ply and 50 psi and that was on a ranger

SultanGris

I find it hard to believe you cant adjust the psi range, but like I said Ive never done it, so you could be right. I find it hard to believe that there are that many different models of sensors out there, cause there are a ton of different tires which have different recommended pressures, seems very odd.

Rickshaw

Time for a Bulbectomy!

TPMS is a joke as far as I'm concerned. My 2008 took 4 days to realize I had put on winter tires with no TPMS sender's. Good thing I never got a flat!

norcal_cyclist

I depends on the system - if you perform a TPMS reset on some cars it will take for granted that the tires are where they belong. The delta in pressure is what it will report on. Early systems relied on the ABS system to read tire rotations.. if it saw a drop in rpm it assumed the tire was low and would kick the light on. What we need is a Ford technician to chime in and tell us whther it is a setting within the computer. I would think it would be since the tpms system would have to be able to read all sorts of tires...

IMO TPMS of any sort is a joke - it stemmed from people being too lazy to check tire pressures and all the supposed tire "blowout ' rollovers. Most of those were due to improper inflation levels. How often do you see someone rolling down the freeway on a tire with about 5lbs of air in it? Here in the nanny state of California our shop is required by LAW to check tire pressures no matter why the car is being worked on. All because people don't take personal responsibility with car ownership.


EDIT: The threshold pressure is adjustable

From another forum "I took Epic's advice today and went to Willey Ford and set my tpms to 45. No more damn light. Epic do you live in Draper? I'm in Logan and grew up in sandy. Willey service manager mike was cool. Did it for free too."