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Open Roads Forum  >  Do It Yourself Modifications and Upgrades (DIY)

 > Tire Pressure Monitor System (TPMS) --- Great add-on

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SJ-Chris

San Jose, Ca

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Posted: 12/28/21 07:42pm Link  |  Quote  |  Print  |  Notify Moderator

spoon059 wrote:

I bought an inexpensive one on Amazon during a sale this fall. On our way back from a trip, I intentionally pulled over and let out 15 lbs of air a couple miles from home. The TPMS immediately recognized the lower pressure, giving me some confidence.

My next RV will have a more expensive system with the internal style TPMS. We're going to take that cross country for a long trip, I want the peace of mind. Lots of people like to poo-poo TPMS systems and say they are worthless, but I disagree.

I've seen plenty of stories of people that had a tire fail and they didn't know for a while. The tire kept deteriorating as it was driven down the road and damaged the trailer too. I have 2 people that we camp with that this happened to. Tire failure and they didn't know until chunks started flying and people starting honking at them and frantically pointing to the trailer.

Even if my TPMS does nothing but alert me before additional damage is done, it is money well spent. We do several longer trips a year. I'll check tire pressure in the morning before we leave, then I don't check again until I get to a fuel station or the next destination. Plenty of time and miles for a road hazard to cause a slow leak that develops into a big problem if left unchecked.


Good to hear.

I too have had multiple times when my inner rear dually was flat and I only noticed after the fact. Once, when the vehicle seemed to be pulling to one side while driving down the freeway (!!!), and twice it looked like the outer tire was low on pressure (which it wasn't...it was just carrying all the load so it was getting squished down). In all of these cases, having a TPMS would have alerted me and helped me to avoid a potential catastrophe (or at least some extra damage).

Inexpensive piece of mind...less than $100 and 5 minutes to install yourself. If you don't have one, I highly recommend you get one.

What is it worth to you to possibly avoid a serious accident while driving your RV with your family/etc??

Good luck!
Chris


San Jose, CA
Own two 2015 Thor Majestic 28a Class C RVs

Esacnj

NJ

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Posted: 12/29/21 08:56am Link  |  Quote  |  Print  |  Notify Moderator

I have had a system for many years on 2 travel trailers and a 5th wheel. I selected the brand because the sensors were the smallest and lightest. I ran them on standard rubber valve stems and never had a problem. I decided to add them to my dually since it had no sensors. That was a mistake. I had them cause a problem with the inner tires on both sides deflating the tires. The TPMS supplier said that they were successful on most valve extensions. That was not the case as I tried different extensions. Apparently the added weight of the sensor creates a problem with the long stem on the inner tires. I have since had metal stems installed but am now reluctant to run the sensors on them also do to their length.

philh

Belleville MI

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Posted: 12/29/21 09:08am Link  |  Quote  |  Print  |  Notify Moderator

I had TST on my travel trailer. It worked great, and it was fascinating to watch the sunny side run higher pressures.

With the new truck, I ordered the trailer TPMS sensor. HAve yet to install them, as the tire store was closed due to no staff the only day I had available to have them installed.

JBarca

Radnor, Ohio, USA

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Posted: 01/19/22 06:23pm Link  |  Quote  |  Print  |  Notify Moderator

I am a big proponent of having a TPMS. In my case, I'm in the travel trailer world with tandem axles. When one tire goes soft or gone, the other tire is in instant overload as it is taking most or all of the weight on that side of the camper. Just like what happens on a dully when one tire goes out.

I bought the TST brand (Truck Systems Technology)https://tsttruck.com/ and it monitors both pressure and temperature. Both are good info. I do use metal valve stems, and my truck is old enough, I added them to the truck too. The system saved me on the truck from bead seal leaks on the aluminum rims.

"Every" time before I leave with the truck and or camper, I turn the system on, let it warm up and I can see all air pressures before I start towing. If there was a slow leak while at camp or at home, it is easy to see it, and then deal with it before you head out. And naturally when towing you have it live all the time.

There is one type of failure the TPM will not detect before it happens, that is an somewhat instant depressurization like the tread just flew off and a second or two later, the whole tire lets go as there is no tread left.

I had 2, BFG Commercial TA, LT tires let go that way and I was using the TPM. In my case, BFG had a recall in that style of tire/factory, just one size wider (245 width) then mine (235 width) for tread separation. Well I believe mine suffered the same issue.

Trust me, a tire failure makes for a bad day camping. Here is the first tread separation. I was doing 55mph one spring day towing on down the highway. I heard a bang, I looked in the right side mirror and saw a puff of smoke. I never felt anything in the truck or stability of the trailer and didn't see anything other then the smoke. About 5 seconds later the TPM alarm went off and I knew I just had a blow out. Pulled over and found this.

The right rear tire let go and the flying tread beat up the camper and beat up the valve stem on the front right tire that is now leaking air. Lucky me, I had the Genny and little compressor with me. You can see the TPM still on the failed tire. The front TPM is MIA.
[image]

[image]

The damage to the camper
[image]

[image]

[image]

The mud flap took a mega hit
[image]

And sadly, on the way home, the other side front tire let go. Changing a flat on the side of the interstate is not fun. 8 ft off the white line is barley enough with semi whizzing by doing 70mph
[image]

[image]

Yes, I'm a fan of a TPM even though they did not detect this type of failure before they blew out.

Hope this helps the cause

John


John & Cindy

2005 Ford F350 Super Duty, 4x4; 6.8L V10 with 4.10
CC, SB, Lariat & FX4 package
21,000 GCWR, 11,000 GVWR
Ford Tow Command
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2004 Sunline Solaris T310SR
(I wish we were camping!)


jjrbus

FT Myers FL

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Posted: 01/29/22 05:17am Link  |  Quote  |  Print  |  Notify Moderator

I have been using the cheap, under $30 TPMS for 5 years, even use them on the wifes car which has factory system, but only indicates low tire, not which one or how low.

The cheap ones only go to 55 psi and the new to me Roadtrek has 80 psi in the rear tires. So bought the Tymate system. have not used it yet so no opinion on it. The cheap systems tend to last about 2 years and are not NASA accurate but never fail to report an issue. The Tymate is easier to program than the ultra cheap ones.

https://www.amazon.com/Tymate-Tire-Pressure-Monitoring-System/dp/B085C2HMQP/ref=pd_lpo_2?pd_rd_i=B085C2HMQP&psc=1

Wiscampsin

Wisconsin USA

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Posted: 01/29/22 09:09am Link  |  Quote  |  Print  |  Notify Moderator

When we picked up our 2020 Flagstaff TT there was a TPMS already installed on the wheels and a repeater on the tongue. Display unit was in the package in the pantry. We didn't have one on our previous 5 campers but wouldn't be without it now.

EMD360

Arvada, CO

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Posted: 02/11/22 01:24pm Link  |  Quote  |  Print  |  Notify Moderator

I also bought a TPMS for about $80 from Amazon and it has been working fine. But one sensor needed the battery changed and after I did that I noticed the monitor did not reattach it. Now I have not been driving anywhere but I’ll have to dig out the directions and rediscover ot for out next trip.


2018 Minnie Winnie 25b New to us 3/2021
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2003 Itasca Spirit 22e 2009-2021

Dutch_12078

Winters south, summers north

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Posted: 02/11/22 05:03pm Link  |  Quote  |  Print  |  Notify Moderator

Since we monitor ten tires on our motorhome and toad, the $80 six sensor system doesn't cut it. Our TST 507 system has worked well for us since 2013, reporting both pressures and temperatures. The easily replaced sensor batteries last about a year for us in full time use, and replacements cost less than a dollar each. Over the years we've had the system, the temperature reporting function has alerted us to a sticking brake caliper on our toad and a failing wheel bearing on our previous motorhome. The pressure sensors have reported a couple of slow leaks and one faster leak as well.


Dutch
2001 GBM Landau 34' Class A
F53 chassis, Triton V10, TST TPMS
Bigfoot Automatic Leveling System
2011 Toyota RAV4 4WD/Remco pump
ReadyBrute Elite tow bar/Blue Ox baseplate


Dusty R

Charlotte Michigan 48813

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Posted: 02/11/22 05:33pm Link  |  Quote  |  Print  |  Notify Moderator

I carry an inferred temperature sensor, and check our MH tires whenever we stop for a break. I have had a tire valve leak after checking with a tire pressure gauge. A temp. is faster and easier.

Fishbreath

home

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Posted: 02/18/22 11:26am Link  |  Quote  |  Print  |  Notify Moderator

I am a big proponent of having a TPMS. In my case, I'm in the travel trailer world with tandem axles. When one tire goes soft or gone, the other tire is in instant overload as it is taking most or all of the weight on that side of the camper. Just like what happens on a dully when one tire goes out.

I bought the TST brand (Truck Systems Technology)https://tsttruck.com/ and it monitors both pressure and temperature. Both are good info. I do use metal valve stems, and my truck is old enough, I added them to the truck too. The system saved me on the truck from bead seal leaks on the aluminum rims.

"Every" time before I leave with the truck and or camper, I turn the system on, let it warm up and I can see all air pressures before I start towing. If there was a slow leak while at camp or at home, it is easy to see it, and then deal with it before you head out. And naturally when towing you have it live all the time.

There is one type of failure the TPM will not detect before it happens, that is an somewhat instant depressurization like the tread just flew off and a second or two later, the whole tire lets go as there is no tread left. "

There is another type that the TST system will not detect. I hit a curb and the sensor was knocked off of the wheel and went into the gutter as I drove away. The system never alerted. According to TST that is because it "lost signal". If the sensor was knocked off it should have immediately read zero pressure and alerted. Nope!
The TST systems are also known for not sealing on some types of valve stems. Of course they don't tell you this when you buy it. I needed to replace the inner dually extensions several times before I could get it to work. I was not impressed with their product.

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