Got any pics of this?I took 1-1/4" PVC, glued pressure caps on them, tapped the end with an air valve, put the TPMS sensors inside, and boosted the tube. I found it has to sit upright in my centerconsole to be detected all the time for some reason; wouldn't work sitting horizontal in my glovebox. I always run my tires on low PSI unless towing and they would always trip.
That is correct and they need to be programmed as to their location by releasing air from the valve stem.I want to know how it knows wheel location. Because if they are coded differently then they should be wrong when you do a tire rotation
Well I was wandering. However mine are 5-8 psi low from actual tire pressures, and I base that off of my company digital calibrated tire pressure guage.That is correct and they need to be programmed as to their location by releasing air from the valve stem.
I don't know how that pressurized tube thing works I dont think it is possible I could be wrong. But not from my experience.
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They do have to be programmed on all my 08/09/10 3/4 ton gmc's they need to be reprogrammed when the tires are rotated. ItI believe that the wheel sensors are not programmed to each rim. Thats why you are able to rotate the rims without any problems. I use a TPS system on my 5ver that is wheel specific. If you rotate them, then you either re-program or put that sensor on the right tire/rim.