Grommet and TPMS issues with inside dually tires

[Rich-MLsRV]

WOW - Just posted on this and then saw this discussion. Looks like I am having the same problem. I have the TST non flow thru pressure monitor. Reading the discussion above looks like the weight and vibration from the pressure monitor are causing the grommet to pop out and then the metal valve stem is then hitting the rim - causing damage. I've attached a picture of mine w/ the grommet popped back in.

I've also been losing tire pressure on the inside tire. I've been able to debug it to the valve stem extender loosening up - maybe caused by the vibration due to the tire pressure monitor?

I am concerned w/ not having a tire pressure monitor on the inside tire.

I'll try some silicon when I get a chance to see if this holds the grommet in place.

 

[Jim]

Had the same problem, which ended when the front tire went flat from the damaged monitor/transmitter. Tossed the whole bunch of them and I'm running blind now. I don't like that, but the solution being part of the problem, is not acceptable either.

 

[TJ&LadyDi]

A lot of these problems are caused by the flexible valvestem extensions. I am a firm believer that full-length, one-piece metal valvestems solve that problem. Yes, they do have to be installed by a tire shop (if your coach didn't come with them) but I believe the end result is worth the cost and extra effort.

TJ

 

[Joe Hogan]

Installed one-piece valve stems when the tires were rotated. Much happier with this install.

 

[RandyB]

One Piece, All Metal Dually Tire Stems

I recently had a failure of a tire stem extension. The one for an outer dual that is nearly a 180 degree bend. The tire stem in the wheel was broken off and the tire went to 0 PSI in about 15 seconds. Fortunately I was parked at the time. Very fortunate. I’ve never been a fan of the flex...

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