Very strange situation yesterday, thoughts welcome...
So, yesterday I took my Claas C into my local Ford Dealer to have my new DuallyValves installed on my rear tires. Finding a garage to actually do that work was really hard, but that's a whole different thread.
Anyway, MH is brand new for us and after the installation we took it out on a maiden road trip to put some miles on it and have the DW get some road time behind the wheel. When I picked it up from Ford we went home and loaded the doggies for a day on the road. While there I double-checked the pressure in all the tires and put on my TPMS a modules on all the tires. Pressure was dead on 80psi in each tire.
Took off and about 30 miles down the highway my TPMS alert went off showing over-pressure on the right rear outer tire. I pulled over to check the tire and sure enough the pressure reading on the TPMS monitor was right...88psi.
While pulled over, I checked all the tires again and all 4 rear axle tires were at 88psi. What the ? Tires temps were all showing about 70 degrees, so no overheating here.
How did all the tires increase nearly exactly 8 lbs in 30 miles? I've never heard of something like this in 30+yrs of driving. Has anyone ever seen this amount of change? I dropped the pressure back down to 80psi and we put another 300 miles on it with no problems or change in the pressures.
What would cause this? Any help?