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TPMS sensors and valve stem failures


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I have the TireTraker TPMS with the external sensors that thread onto the valve stem in place of the normal valve caps.  While doing my spring cleaning on the Ollie, I noticed that all 4 aluminum rims have a wear mark on the rim directly adjacent to the valve stem (see picture).  In researching this a bit, I found some comments on other forums about the weight of the external TPMS sensor causing the valve stem to deflect when the tire is rotating at highway speeds, and in some cases even causing the valve stem to fail.  Anyone else observed this?  Has anyone ever experienced a rubber valve stem failure while using the external sensors? 

 

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2019 Oliver Legacy Elite II - Hull #461

Tow Vehicles:

Primary - 2019 Ford F-250 SuperCab 4x4, 6.2L Flex-Fuel engine 

Backup - 2019 Nissan Armada 

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22 minutes ago, topgun2 said:

One of the reasons I changed to metal stems.

Bill

Yeah, that’s the recommended solution posted on the other forums, or going with the internal sensors inside the tire.   Either way, a significant bit of cost and downtime to upgrade all 4 wheels.  Very mixed feelings at the moment about continuing to use the sensors with the rubber valve stems and risking catastrophic rapid leak(s) if one or more of the valve stems fail, or removing the sensors and going without the TPMS system for now and risking an unmonitored tire leak.   TireTraker manual does say metal stems are “recommended” but not required.  
 

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2019 Oliver Legacy Elite II - Hull #461

Tow Vehicles:

Primary - 2019 Ford F-250 SuperCab 4x4, 6.2L Flex-Fuel engine 

Backup - 2019 Nissan Armada 

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For anyone with another brand of TPMS other than TireTraker, do the operating instructions have the same “recommendation” for metal valve stems?

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2019 Oliver Legacy Elite II - Hull #461

Tow Vehicles:

Primary - 2019 Ford F-250 SuperCab 4x4, 6.2L Flex-Fuel engine 

Backup - 2019 Nissan Armada 

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I recently installed the TireMinder i10 TPMS system.  The instruction manual says the following of page 28:

Can Rubber Valve Stems Be Used with The TireMinder Transmitters?

Yes, TireMinder Transmitters may be used on high quality, high pressure rubber valve sterns. However, we highly recommend brass or stainless steel valve sterns. Due to the fact that rubber valve sterns deteriorate fairly quickly, e.g. they should be replaced when replacing your tires, an external TPMS sensor can exacerbate the deteriorating by adding weight to the valve stern. Additional rubber valve stems issues are based on age, length and physical location (i.e. exposure to road salt, high heat, sun, etc). If using rubber valve sterns, it is recommended that you check the condition of you rubber valve sterns on a regular basis. Failing to do so will result in a tire failure.

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North Texas | 2022 LEII, Hull #990, delivered 2/17/22 | 2014 BMW X5 35d

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Going on six years, and no issues with my TireTraker sensors, they do hit the rims, just like that top picture, it never bothered me any.

I worry a whole lot more about busting off a steel TPMS stem on my Land Cruiser.

John Davies

Spokane WA

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"Mouse":  2017 Legacy Elite II NARV (Not An RV) Two Beds, Hull Number 218, See my HOW TO threads: https://olivertraveltrailers.com/topic/john-e-davies-how-to-threads-and-tech-articles-links/

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29 minutes ago, John E Davies said:

Going on six years, and no issues with my TireTraker sensors, they do hit the rims, just like that top picture, it never bothered me any.

I worry a whole lot more about busting off a steel TPMS stem on my Land Cruiser.

John Davies

Spokane WA

Thanks John.  Good to know your long term experience with them has been trouble free.   

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2019 Oliver Legacy Elite II - Hull #461

Tow Vehicles:

Primary - 2019 Ford F-250 SuperCab 4x4, 6.2L Flex-Fuel engine 

Backup - 2019 Nissan Armada 

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1 hour ago, FrankC said:

For anyone with another brand of TPMS other than TireTraker, do the operating instructions have the same “recommendation” for metal valve stems?

Tst recommended them when we bought ours, over a decade ago .

We installed metal stems. No issues.

If you continue with original rubber stems, just check regularly.  

I think it's a personal choice. Weigh the weighted sensors, vs stems, vs camping habitat and roads .

 

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We've put metal stems on every trailer along with the TST sensors. As soon as we get Eggcelsior home, she's going to a tire shop for wheel balancing, metal stems, and chromed steel lug nuts. 

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Stephanie and Dudley from CT.  2022 LE2, Hull #1150: Eggcelsior.

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6 hours ago, John E Davies said:

Going on six years, and no issues with my TireTraker sensors

I have only 5 years and 25,000 trailer miles with the same system.  No issues at all.  

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We went with metal stems when we got the TST system 5 years ago.  Local tire shop mounted the stems and balanced each wheel with the TST sensors mounted.  If I recall it took about 45 minutes and was not expensive.  No issues so far after around 60K miles with them mounted.  Mike

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