Exactly what Gary said! The rubber stems flex and allow the TPMS sensors to bang against the wheel rims, which causes them to break. Guess how I know? But, I think I was one of the first users to experience this and TireMinder (my TPMS brand) replaced the three sensors that broke this way free for me. I don't think they will do that now, and they have a warning to use metal valve stems to keep this from happening.
Here's a link to an updated version of the one I have: https://www.amazon.com/Minder-Resear...E5PHTWB4QNFPXX It shows you pressure AND temperature in up to 6 tires. I use 6 sensors - 4 on my truck's wheels and 2 on the single trailer axle on my HiLo. I'd recommend you do the same. The additional tongue weight puts quite a bit of stress on the tow vehicle's wheels. The temperature monitoring is an early warning of impending problems.
- Jack
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Hi-Lo 1707T - Tire Minder TPMS on Tow Vehicle and Trailer, 300W Solar Battery Charger, Equal-i-zer WDH, Progressive Dynamics Converter, Fan-Tastic Fan, LiFePO4 battery 12V DC Electrical System, SoftStartRV mounted on A/C
2024 F150 Platinum FX4 3.5L PowerBoost SCrew
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