Does anyone know if putting the TPM on the tire stem cause any kind of imbalance?
I didn't notice any difference. Big tires aren't as critical as car tires.
If your tires are truly in that precise a balance, an easy solution:
On front wheels, put a stick on weight of exactly the same weight as the TPsensor 180 degrees from it.
In the rear, the two are 180 degrees from each other, so no issue.
Probably not on the coach, but it is definitely an issue on my 2005 CRV. The approx .75 oz of the sender on the front tires causes a vibration above 60 mph. I was told by several tire shops that the CRV is particularly sensitive to even small weight imbalances in the front tires.
Bob,
Again, same thing-- put a .75 weight 180 degrees from the TP sensor. Stick on ones are easy and you can probably get them for free from any tire store. I know I did.
I'm sure that would do the job Brett, but I remove the TPMS sensors when I am at home (most of the time) or otherwise not towing for a while since that helps preserve the sensor battery life. The stick on weights are not reusable. Guess I could buy them in bunches, they are not too expensive. Wonder if a Velcro type fastener would work.
Centrimatics rebalance the wheels continiously.
We have used PressurePro sensors on the coach and the Wrangler Unlimited for a few years with no noticeable imbalance at all.
We had a CRV before the Wrangler (4 years ago) with the same sensors with no problem.
When I bought new tires for the towed Subaru, I asked my friend at the local tire store to install metal valve stems in anticipation of adding Pressure Pro sensors. When I added the Pressure Pro system, I had him balance the tires with the Pressure Pro sensors in place. I leave the sensors in place all the time.
I use Centramatic balancers of the coach.
The newer sensors they had at the show in "Q" stated they did not effect tire balance.
We have Pressure Pro sensors on both the coach and the Daihatsu Rocky that we pull. There is no vibration on either.
But, on our old GV I stupidly fitted long, 4in, metal valve extensions with the sensor on the end. On the first trip, near Casper WY, that RH inner broke the standard valve stem off at the thread with a corresponding loss of all pressure. Fortunately it broke as I was slowing for the off ramp and no tire damage was done.
The good part of all of this was one of the local tire shops, pulled both back wheels, fixed it and refused any payment. Always break down in Casper!!! And, don't fit metal extensions!!
Speedbird 1.
My guru buddy only installs Bendix tire pressure systems made for trucks.
Expensive. And they will not knowingly sell for Rv use so he has the cummins dealer parts dept order them for him.
His reason is that they show pressure AND temperature.
Require removing the tire as they mount internally.
According to him simply the best.
Sometimes you don't get any warning. The old tube type on my 1981 had the right pressure but road hazards do exist. At least that was the best guess.