RV.Net Open Roads Forum: General RVing Issues: tpms vs tire gauge reading

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in General RVing Issues

Open Roads Forum  >  General RVing Issues

 > tpms vs tire gauge reading

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
Sponsored By:
rbp111

Citrus Heights, CA

Senior Member

Joined: 08/16/2006

View Profile





Offline
Posted: 04/16/19 06:15pm Link  |  Quote  |  Print  |  Notify Moderator

I purchased two things for the trailer. One was a tire gauge and the other was the Tire Pressure Monitor System.
First, I checked the pressure by use of the gauge (brand new). The tire pressure showed 110 PSI. After that, I installed a TPMS and noted that the Tire pressure was showing 115 psi (cold pressure). As the tire is used and the day increases in heat, the tire was showing 123 psi.
what PSI should I follow? The first gauge that shows the psi to be 110 or the tpms which shows the pressure to be 115. Or should I decrease the amount of air, putting the tpms as priority, in other words putting the psi to 110 down from the reading of 115?

Cummins12V98

on the road

Senior Member

Joined: 06/03/2012

View Profile


Offline
Posted: 04/16/19 06:22pm Link  |  Quote  |  Print  |  Notify Moderator

All depends on the QUALITY of each item there is a lot of junk out there.


2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

fj12ryder

Platte City, MO

Senior Member

Joined: 08/19/2003

View Profile



Posted: 04/16/19 06:33pm Link  |  Quote  |  Print  |  Notify Moderator

Yep, just depends on which is the better quality. My pressure gauges and my TPMS agree to the pound.


Howard and Peggy

"Don't Panic"

Ava

Vancouver Island. BC Canada

Senior Member

Joined: 05/05/2015

View Profile



Good Sam RV Club Member

Offline
Posted: 04/16/19 09:23pm Link  |  Quote  |  Print  |  Notify Moderator

My TPMS monitor is adjustable to set pressure close to a regular gauge.

Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Offline
Posted: 04/16/19 10:23pm Link  |  Quote  |  Print  |  Notify Moderator

Split the difference. 2.5 psi either way makes zero difference.


"Yes Sir, Oct 10 1888, Those poor school children froze to death in their tracks. They did not even find them until Spring. Especially hard hit were the ones who had to trek uphill to school both ways, with no shoes." -Bert A.

JimK-NY

NY

Senior Member

Joined: 05/12/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 04/17/19 05:11am Link  |  Quote  |  Print  |  Notify Moderator

My Ram TPMS readings match my manual gauge exactly and that is true for my 2018 truck and formerly for my 2010. I would get a new gauge and recheck.

bucky

Raleigh metro

Senior Member

Joined: 05/07/2003

View Profile



Good Sam RV Club Member

Offline
Posted: 04/17/19 05:38am Link  |  Quote  |  Print  |  Notify Moderator

You can buy 5 of the same exact gage or tpms sensor and get 5 different answers. Drives me crazy.


2005 Cummins 2500 2WD LB quad cab pulling a 2007 Jayco 345bhs. It pulls better than Marcell Ledbetter's mule.


Sam Spade

North Central Florida

Senior Member

Joined: 11/05/2015

View Profile


Offline
Posted: 04/17/19 06:50am Link  |  Quote  |  Print  |  Notify Moderator

rbp111 wrote:

Or should I decrease the amount of air, putting the tpms as priority, in other words putting the psi to 110 down from the reading of 115?


Try another gauge.

But I think you will find that the gauge is "right" and the TPMS is off a bit.......or off more than the gauge.

TPMS sensors are really not intended to be used to "air up" the tires but to monitor them for pressure LOSS as you go down the road.
+- 5 PSI cold usually isn't a big deal.....and the pressure ALWAYS will go up as the tires heat up.

Once you get a feel for the calibration errors in the TPMS system, which can be different for each sensor, then you will know what readings are "normal".


'07 Damon Outlaw 3611
CanAm Spyder in the "trunk"

IdaD

Idaho

Senior Member

Joined: 08/06/2014

View Profile



Posted: 04/17/19 06:50am Link  |  Quote  |  Print  |  Notify Moderator

Grit dog wrote:

Split the difference. 2.5 psi either way makes zero difference.


Yeah as long as you're not way off it doesn't really matter. Tire pressures vary quite a bit from cold to rolling down the highway on a hot day, more than a couple of PSI.


2015 Cummins Ram 4wd CC/SB


Bobbo

Wherever I park

Senior Member

Joined: 09/16/2007

View Profile



Good Sam RV Club Member

Offline
Posted: 04/17/19 08:11am Link  |  Quote  |  Print  |  Notify Moderator

My TPMS consistently reads 2 psi lower than my gauge. When reading the TPMS values, I just add 2 psi.


Bobbo, Linda and the furry kid (45 pound rescue)
2017 F-150 XLT 4x4 SuperCab w/Max Tow Package 3.5l EcoBoost V6
2017 Airstream Flying Cloud 23FB


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next

Open Roads Forum  >  General RVing Issues

 > tpms vs tire gauge reading
Search:   Advanced Search

Search only in General RVing Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2019 CWI, Inc. © 2019 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS