Defeating TPMS???

[PRO-4 #31]

Has anyone tryed putting all the sensors in the spare tire and put it at the PSI the truck calls for? We do that in alot of cars that put 20" or 22" on and it fools the comp and works fine.

[GrampyJim]

Not knowing squat about you makes it hard. My first impression is that you do not understand the system....

FWIW, the SJB is going tolook for a TPMS signal when the truck passes about 1

[PRO-4 #31]

Originally Posted by GrampyJim

Not knowing squat about you makes it hard. My first impression is that you do not understand the system....

FWIW, the SJB is going tolook for a TPMS signal when the truck passes about 1

Explain yourself

[Smokewagun]

I have been dealing with this TPMS issue on my 2008 F-150. Because I have front and rear tires with different pressures, I received the reset tool. I have played with the system after the dealer reset it twice (before I found the fob reset tool) and found that even though my fronts require 65psi and the rear 80psi, I can get as low as 55psi with my BFG T/A's without setting off the "low tire pressure" warning light. I have been driving at 655psi front and rear now for a few months with no issues.

[Race5150]

Everyone has there own issues with the TPMS, and says what you can and can't do. I just removed the TPMS in all wheels and only had the light turn on one time right after I removed them. No lights, bells and whistles like some think will happen.

[deliberate]

Originally Posted by Race5150

Everyone has there own issues with the TPMS

You were responding to quite an old thread. But now that you've re-opened it, here are my thoughts (I hate TPMS as currently implemented).

It depends on your MY. As I understand it (please correct me if I'm wrong), the 2008 and 2009 SDs came with band sensors and then in the 2010 Ford changed to stem mounted sensors. In 2011, a number of parameters, such as fuel tank size etc, were made available to be modified in the computer by the dealers. IIRC, this may include the Toilet Paper Monitoring System alarm levels. I suspect that Ford has changed how it has handled the TPMS alarm programming several times during this entire period.

As a hint to those who do have TPMS problems with SDs that require different front and rear pressures, such as my F350 where the plate says 65 front and 80 rear, try this: rotate your tires front to back but do NOT do any computer location change steps - just take off the fronts and swap them with those on the back. Now your sensor locations are changed and the 80# "rears" are on the front.

So, now if you don't mind running just under 70# (or even slightly less, within the the 20% range off 80#) on the front, you can, when appropriate, air down the rears to a reasonable pressure no lower than the 20% limit off #65, eg #55 range, in the rears.

Your computer doesn't know where you sensors are, just that they are within range and responding, and that the ones it *thinks* are on the rear are no more than 20% below #80 (allow for effect of colder conditions) etc.

Works for me, however the next time I rotate, I'll have to retrain the locations - but I might accidently goof and tell it the rears are on the front, etc. Ooops. BTW: it was the unthinking lazy tech at my dealer who unintentionally did that first un-coordinated front-back rotation for me. Cost me $14 - it certainly was worth it!

Just don't let your dealer/mechanic "help" you by checking your tire pressures when you stop by. "Step away from those tires, I have the pressures exactly where I want them."

Hope this makes sense,
- Don

[Jburcham04]

H&S black or mini max with tpms block