Hot tire!

[Strut21]

I have a 2020 Forest River Sunseeker 2550DSLE. I have a TST507 TPMS. The RV has been sitting in my driveway since Sunday when I retrieved it from storage (1 mile away). I was looking at the tire pressures and noticed the inner right rear tire temperature reads 90 degrees while the other 5 read in the low 60s. The right side is out of the sun. Is this something to be concerned about or will it sort itself out when I get gas and add air to the tires? Why would one tire read 30 degrees warmer than the others when it hasn’t been driven for 48 hours? How accurate is the TPMS?

 

[rsdata]

the TST series is typically very accurate... I have had a TST with external screw-on sensors for about 6 years and they have worked well... on my third set of batteries in the sensors
possible bad sensor
is the sensor internal or external so that you could take it off?

I would use it and keep an eye on the tire and the reading on the TST for awhile and see if you just need a new sensor

I also have an inexpensive laser temp gun that I use to check the wheel bearing temps while driving long distances

 

[bikendan]

Moved thread from the General Community Discussion section to the Forester and Sunseeker sub-forum since the OP's questions are specific to a Sunseeker motorhome and not general community questions.
Also for better help from other Sunseeker owners and possible factory support.

 

[Chuck_S]

What's the ambient temperature? Inner tires don't get much warming effect from the sun. How are you reading tire pressures and temperatures?

You mention "adding air/" Are the numbers 90°F and 60°F or 90psi and 60psi?

Until you confirm the tire pressure monitor is accurate measure temperature and pressure by known analog means.

-- Chuck

 

[Strut21]

I took the RV to a free air repair shop. I added air to the tires. I checked the TPMS on the way back and all tire temperatures were reading in the low 60’s. All is now right in my world!