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Open Roads Forum  >  Class A Motorhomes  >  General Topics

 > TPMS Settings

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Alex and Tee

Jacksonville , FL

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Posted: 09/09/21 10:33am Link  |  Quote  |  Print  |  Notify Moderator

Installed my TPMS and all sensors seem to be responding. Need to set the upper and lower limits on pressure. My tires require 100 psi. Not sure how much that may increase under driving conditions but was thinking setting upper limit at 120 and lower at 80. Looking for recommendations if these aren’t good.

Thanks!


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2oldman

NM

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Posted: 09/09/21 10:34am Link  |  Quote  |  Print  |  Notify Moderator

sounds fine

MountainAir05

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Posted: 09/09/21 11:00am Link  |  Quote  |  Print  |  Notify Moderator

To me seems high for the upper by a lot. Ours might gain 10 lbs on the high side, but again you have to figure in the out side temp. The low side would be maybe 90. This is your call since its your system. What does your system tell you.

This is the rule that I found works best for us. Pressure and temp .

In general, tires lose or gain 1 PSI (pound per square inch) for every 10? change in temperature. Theoretically, your tires could gain 2 PSI plus over the course of the day if the temperature rises 20?—a real possibility in many parts of the country.

The people who delevoped the tire are the ones to ask the question to. They have already figured this out . My Suv and car gain about 2 to 4 lbs on a 100 + day. They start out at 32 to 35 lbs.
when cold. Have a Nice day.

Sandia Man

Rio Rancho, NM

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Posted: 09/09/21 11:10am Link  |  Quote  |  Print  |  Notify Moderator

Those numbers will work for starting out, pretty warm in most places still so taking a ride on a hot day will provide a better indication for your high limit threshold. On the low limit side 20 psi might be too much, again you can tailor settings after a few extended rides.

rgatijnet1

Florida

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Posted: 09/09/21 11:17am Link  |  Quote  |  Print  |  Notify Moderator

Make sure your tires are inflated to the correct PSI according to your coach weight. Then check your TPMS readings after driving most of the day and see how much they have increased, assuming they are all consistent. Then I set my TPMS setting 10% above that.
If you travel during the Winter, be sure to check your inflation pressure before you start out for the day.

dodge guy

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Posted: 09/09/21 01:16pm Link  |  Quote  |  Print  |  Notify Moderator

Ive seen my pressure increase by 25lbs in extreme heat (86 cold and near 110 hot). I have my upper limits at 120.


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bob213

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Posted: 09/09/21 02:07pm Link  |  Quote  |  Print  |  Notify Moderator

When I bought mine TST recommended 20% above and 10% below.


You can avoid reality, but you cannot avoid the consequences of avoiding reality – Ayn Rand


Cocky_Camper

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Posted: 09/15/21 06:13am Link  |  Quote  |  Print  |  Notify Moderator

What TPMS did you get? We are looking at purchasing and installing also.


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Alex and Tee

Jacksonville , FL

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Posted: 09/15/21 07:05am Link  |  Quote  |  Print  |  Notify Moderator

We purchased the GUTA Solar Tire Pressure Monitoring System from Amazon. It has good reviews and was reasonably priced. The 6 sensor version was $210. It was easy to program and seems to be working well so far.

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