tpms vs tire gauge reading
I purchased two things for the trailer. One was a tire gauge and the other was the Tire Pressure Monitor System. First, I checked the pressure by use of the gauge (brand new). The tire pressure sho...
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rbp111 wrote:
Or should I decrease the amount of air, putting the tpms as priority, in other words putting the psi to 110 down from the reading of 115?
Try another gauge.
But I think you will find that the gauge is "right" and the TPMS is off a bit.......or off more than the gauge.
TPMS sensors are really not intended to be used to "air up" the tires but to monitor them for pressure LOSS as you go down the road.
+- 5 PSI cold usually isn't a big deal.....and the pressure ALWAYS will go up as the tires heat up.
Once you get a feel for the calibration errors in the TPMS system, which can be different for each sensor, then you will know what readings are "normal".
