Tpms sensor replacement

mazda
mazda3

#1

2009 Mazda 3, one of the TPMS sensors has a cracked mounting nut, the dealer wants $140 to replace the sensor. I checked local auto parts stores for the nut, and there is a repair kit for about $5… can I replace the nut without demounting the tire?


#2

Yes, as long as the tire remains properly inflated during the procedure

Be careful that you don’t overtighten the new nut


#3

If the valve stem is damaged you won’t be able to remove the nut and replace it. Why did the nut crack?


#4

I will just have a tire shop do it, should not cost more than $25.


#5

But I have seen instances where the nut was damaged, but the valve stem itself was still okay, and so were the threads

just saying

I would guess the nut is cracked, due to overtightening


#6

thanks for the answers, i think the tire shop option is the best choice, and i don’t know why the nut cracked, the dealer found it during an inspection, was probably cracked from before i owned the car, cause i never touched any of them…Crusty