tire pressure and cold wether

[RSBivings]

Left this past Friday to go camping great trip. When I left I check all tires an 80 lbs of pressure. TPMS on and no problems On Monday morning when it was time to return check tires and the right 2 were down 30 lbs and the left 2 were 8 lbs low. A cold front had come thru on Friday night I expected a drop but not 30 lbs. added air and returned no leaks in valves or tires. not sure what happened. Any suggestions?

[5picker]

8 lbs. drop is somewhat believable for a cold front but not 30.
I'd be looking harder for a leak or signs of someone messing around.

[Witch Doctor]

Originally Posted by RSBivings

Left this past Friday to go camping great trip. When I left I check all tires an 80 lbs of pressure. TPMS on and no problems On Monday morning when it was time to return check tires and the right 2 were down 30 lbs and the left 2 were 8 lbs low. A cold front had come thru on Friday night I expected a drop but not 30 lbs. added air and returned no leaks in valves or tires. not sure what happened. Any suggestions?

Sounds like your system is leaking, had the same problem had to replace the 0 rings, they leaked again on me, I sent them back to TST. They rebuilt them for free, if they are flow thru, they said it a common problem with the valve. You have 2 places it can leak not 1 like the button top, I can also understand 8 plus or minus 2 degrees but not 30, I would call them. They are great to work with. They had some rebuilt units for sale then so they gave me a deal 4 bottom tops for 100.00 bucks, now I have both styles, I will not move my trailer without them being reading correct, they have saved me twice now.[emoji120] [emoji482] [emoji15] safe travels.