Tpms issues... strange but true - Ford Mustang Forum
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post #1 of 3 (permalink) Old 09-05-2019 Thread Starter
Jlattan75's Avatar
Joined: Jul 2019
Posts: 9
Tpms issues... strange but true

I have a 2007 mustang v6 convertible. I issue started with the Tpms light blinking, in theory telling me I had a battery in one of my sensors going bad. Last week I got a new set of tires from Sams Club. The tech said he saw what the issue was that the tpms band on the wheel was not near the valve steam like it was supposed to be. He corrected it and got the system to communicate. Shortly after that my tpms light came on solid. I checked pressures and found that if anything they were high around 39 psi compared to door sill sticker saying 35 psi is correct. I took it back to sams club and they read the same thing. They read all four tries with there tool but the light remained on. He tried to reprogram the tire ids using his obd II connection. It would go through 3 out of four than failed. He conferred with other techs and none of them had seen that before. I thought about having them rotate the tires and try again? Any suggestions? I have another set of tires with bands they are 17” not the same as the 16” on the car, but can I remove the band from one to the other? I guess can they removed and reused? Ali’s I want to get a full size spare. What exactly do I need to find in size other than just 16”. Like a curtain offset? Ty

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post #2 of 3 (permalink) Old 09-05-2019
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Joined: Jan 2011
Location: Central Massachusetts
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my best guess is you were on the right track about the battery -- don't know why the band needs to be near the valve stem, the pressure is the same everywhere inside the tire, guessing that is just the way they are told to install them and the tech does not understand why

I think you can get aftermarket stem-mounted sensors that are compatible with your system, that might be the best solution going forward, just make sure they are compatible with your year car because they changed in 2010 and again in 2015 if I remember correctly

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post #3 of 3 (permalink) Old 09-05-2019
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Joined: Oct 2013
Location: whiting
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Tell your tire tech to go get re trained on how to install a tpm. It is supposed to be opposite the valve stem. 180*. Straight from ford service manual. Not saying that has anything to do with your problem, because yes the pressure is the same no matter where it is in the tire. You either have a bad battery or bad TPM.

It's a balance thing, you don't want all the weight in one area.
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