Do you trust your TMPS system to verify psi at the start of a trip?

[mwfett]

Hello, I run a TPMS system to monitor my psi while on the road. However, I use a psi meter to check tire psi before starting out. Is this necessary? Do we trust the TPMS to tell us the tire psi is OK?

Thanks

[huntr70]

Most of the onboard systems need the wheels to move to activate the sensors.

Once they are activated, there is no difference between starting out and on the road.....

[Hoopy Frood]

I check them every once in a while, every month or so. they've always been no more than a half psi or so off.

[livinthelife]

Hello, I run a TPMS system to monitor my psi while on the road. However, I use a psi meter to check tire psi before starting out. Is this necessary? Do we trust the TPMS to tell us the tire psi is OK?

Thanks

At the beginning of the trip (often daily) my husband will manually check the tires. The pressure on the manual pressure gauge is (most of the time) within 2-3 lbs of what the TPMS is showing.

Better safe than sorry.

[llr2800]

My TST system with cap sensors does not need to moving to show the pressure how ever it does take a few minutes before all 4 sync up.

The only time I use a gauge is if I need to adjust the pressure. The gauge and TST are always very close and who knows which is actually more accurate

[BobKilmer]

My TST system with cap sensors does not need to moving to show the pressure how ever it does take a few minutes before all 4 sync up.

The only time I use a gauge is if I need to adjust the pressure. The gauge and TST are always very close and who knows which is actually more accurate

I do the same and agree on the sensors versus gauge. I don't know which is more accurate but they are always close.

I also consider it on a percentage basis. They differ by a pound or two out of my 110 PSI target. That is pretty accurate, especially considering that as soon as I start driving the pressures will change much more than that due to the increased temperature.

[traveldawg]

I plug my TireMinder in the night before a travel day. That way it is charged up and it will show me the current PSIs without having to move. I trust what it tells me.

[MoonShadow_1911]

Hello, I run a TPMS system to monitor my psi while on the road. However, I use a psi meter to check tire psi before starting out. Is this necessary? Do we trust the TPMS to tell us the tire psi is OK?

Thanks

Before I move the coach, I check all 8 tires manually, with my calibrated pressure gauge. That way I know, without a doubt, that the pressure is correct. I do try to check the pressure with an ambient temperature of no more than 75°F. Sometimes it's not possible as summer temperatures here in New Mexico rarely have a low of less than 80°F unless it's at like 03:00, and I'm not getting up that early.

The TPMS is for my peace of mind when on the road, not as a remote PSI gauge. My new to me TST TPMS system for the coach runs about 2 lbs lower than my calibrated tire pressure gauge.

EDIT: I'm just old school, I guess.

Sent from my SM-N986U using Tapatalk

[xrated]

The way I look at it is this.....If I'm going to trust it for a 5000 mile trip, why shouldn't I trust in in the mornings before starting the trip for the day. Having said that, it's still a good idea to do a walk around and check the tires, suspension components like the springs/hangers/etc. It's part of my walk around ritual before pulling out of the campsite.

[Scott'n'Wendy]

The way I look at it is this.....If I'm going to trust it for a 5000 mile trip, why shouldn't I trust in in the mornings before starting the trip for the day. Having said that, it's still a good idea to do a walk around and check the tires, suspension components like the springs/hangers/etc. It's part of my walk around ritual before pulling out of the campsite.

This^^
Either you trust it..or don't. If you don't trust it....replace it.
Like xrated, I do a visual circle check.