Did your know that the tire monitoring on Fords is NOT that accurate?

[roket]

from my experience, the TPMS sensors are pretty spot-on. i have seen no more than 1 psi difference in mine, but that may be due to the fact that it does not show decimals, and instead rounds the number to the nearest whole. the only real downside is how fragile the sensors themselves are

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[roadpilot]

If you're relying on TPMS sensors to let you know when you're 1 or 2 PSI off, then you have no idea what the primary purpose of TPMS sensors are.

Basically, they are there to help inform MOST drivers that "Hey, bro, there's something wrong with your tire -- better get it checked out before it goes flat!"

IMHO, they are nothing short of the idiot lights on the dash. Those don't measure temps or pressures to any real accuracy ... they are intended to help you avoid a problem happening in order to address it BEFORE you find yourself stranded somewhere.

That said, I've used a variety of reputable gauges over the years. My Ford and Lincoln vehicles have never been off more than 1-2 PSI.