I know.

But do you know what the trigger is to set off the warning light? What did Ford specify for a PSI to trigger the light to come on? Or does it work off of statistical variance (I highly doubt, but with technology these days, it can be processed fast)?

 

Dealership should fix it for free under the bumper to bumper warranty.

 

About 3/4 of the way down on the following page is the minimum pressure settings for different types of tires that will activate the TPMS. My understanding is that Ford does not use the minimum (20psi for p-series with a max of 35). They have it set to come on at a higher pressure (see I can't bother to check my tires Explorer owners).

http://www.nhtsa.dot.gov/cars/rules/...ing.html?name=

 

...

 

Yep, I tried it... 70 seconds right on the nose.

Luckily I got to the service center before they closed and made an appointment on Friday @ 9.

So there is a malfunction...

Interesting...

Thank you very much i.ride.suzuki for the tech info.

 

What, no thanks for Sandog. The light will always come on and stay solid if it is a low tire. If it flashes then stays on, it is a fault. It will not take them long to fix it. Good Luck!

 

.....and Sandog53 for helping me.

 

I wanted to ask this earlier... but I forgot...

I know the pressure sensor sender is obviously attached to the rim. Where is the sensor receiver?

I was thinking it was someplace near the brake caliper... or attached to the suspension. Or does it do it somehow else... I'm confused.

 

The sensor receiver is usually under the knee bolster on your left as you sit in the truck.

 

The VCM/BSM handles the TPMS stuff.

 

Ok... sounds logical.

 

Well, I got it fixed... took them about an hour to fix. They said that the TP sensor band that holds it onto the rim came apart and was rolling around inside of the tire, from this it really messed up the sensor. He said that it could have been like this for a long time and finally it took so much abuse from being smacked around inside of the tire that it finally failed. It makes sense because I was driving on the highway when it happened. However, I felt a wierd vibration on that side for some time... just couldn't figure out what it was. I noticed that since it is fixed, the truck has no vibration at highway speed.

I figured thats what it was... but I wasn't going to start playing a guessing game.

My other question is... say when I run out of warranty... and somehow this happens again or one just fails... how do I know which tire it is? Obviously it doesn't give me a code on my Scangauge because I think it is a "B" code, meaning a body/electric code and the Scangauge only reads "P" codes, meaning powertrain codes. Is there a function that I can perform with the odometer area to show me which wheel it is next time? Or do I need a scanner that will read codes like this?

Seems kind of stupid that a regular scanner couldn't pick this up... because I'd hate like heck to have to pay Ford to read which tire it is after the warranty, because it's like $100...