MoneyShot

Well I thought so too BUT I didn't get the dash light. I swapped my 08 stockies with '11 gt take offs and have not received any dash indicator light since the swap. I know the old one worked because a had a flat about a year ago and my dash lit up.
So what happened? something broken? fuse popped? or could mustang to mustang wheels not need a sync?

Norm Peterson

I'm going to guess that you stacked your old wheels/tires (with the sensors) not all that far away from where you park the car. And that your trips have all been relatively short since swapping.

Seems the TPMS signals can reach out at least 30 feet, and as long as the TPMS module gets a signal back on startup it is under the impression that you've still got the old tires on the car. And as long as you drive less than 20 miles or so, it won't try to re-ping the sensors and come up with a fault showing. If you do drive enough miles for the light to trip, it'll start tripping on start-up and it might take a couple of times starting at home near the old stack of tires before it quits doing that. But eventually it will. My experience, anyway.


Norm

MoneyShot

Hmm... Well you are correct they are stacked close by and i live 1 mile away from work, however they are indoors and I have driven 30 mins one way and still have no light (or haven't noticed)

If it takes the car that long to realize there is a problem with your wheel then TMPS seems kind of pointless, which honestly they kind of are. The whole thing is government mandated anyways so maybe Ford did just enough to get by.

Either way thanks for the reply Norm

Norm Peterson

Tires stacked indoors vs a car parked outdoors doesn't matter. So are mine.


Norm

Ansibe

I have the same "problem." Swapped my '11 GT wheels for '08 GT500s with band sensors: no light! My OE wheels were sold to a guy who lives 100 km away, so let's assume the return signal strength is very low.

I have been about 160 km (100 miles) from home, still no light. I haven't tried letting the air out of a tire to see if the TPMS is working.

My theory is that the Ford system range is very short (30' sounds reasonable), and when the system is "pinged" on start-up, it gets a valid (authenticated) response from the installed sensors. Future pings are accepted as valid.

JAJ

I just posted more or less the same response as Norm's on DPE's thread on this topic. I have read that the 2011+ system will give you a no-sensor error for a while, but it eventually gives up and stops warning if you don't have sensors.