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10-04-2023, 08:27 PM
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#1
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Site Team
Join Date: Apr 2017
Location: Colorado Rockies
Posts: 1,993
M.O.C. #19755
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TST TPMS sensor & valve cores
Just finished winterizing the RV. Part of that process is removing the TST TPMS sensors. It seems that almost every year, when I remove the sensors, one of the valve cores will stick in the open position. Sometimes taking it out and putting it back solves the problem; other times, like today, I have to install a new valve core.
Has anyone else seen this problem? My theory is that the valve cores are not designed to by held open constantly and won't pop back into the closed position.
__________________
Scott & Alta
2017 Montana 3160RL, Legacy, Onan 5.5Kw, Solar
2022 F-450 Lariat Ultimate
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10-26-2023, 09:25 PM
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#2
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Montana Fan
Join Date: Jan 2019
Location: TROY
Posts: 134
M.O.C. #23248
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I have the TST flow through sensors which I remove when the RV is in storage. I have never had that problem. Perhaps there is a lubricant, like that used for air tools that might help?
__________________
2019 20th Anniversary Edition 3120RL
2019 3500 Silverado HC, SWR, Duramax
B&W 20K for GM OEM Puck
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10-26-2023, 09:39 PM
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#3
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Montana Master
Join Date: Dec 2021
Location: Northeast TX
Posts: 1,016
M.O.C. #30262
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I would be very cautious using any lubricants. Anything petroleum based can very detrimental to most rubber products. You could safely try a spray silicone base product if you feel the need for lubrication.
Otherwise I keep a small pack of valve stem inserts handy.
__________________
Lee, Edith, Lil' Bit & Cuddles
22 MHC 331RL, Surge Guard 35550, SumoSprings, Kodiak disc brakes, 412Ah Lithium, Gen 3 Goosebox, Sailun 85s
22 Ram 3500 CC DRW 6.7 CTD Herrin Hauler Classic Bed, 45 gal AUX tank
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10-26-2023, 09:51 PM
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#4
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Montana Fan
Join Date: Jan 2019
Location: TROY
Posts: 134
M.O.C. #23248
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Quote:
Originally Posted by Lee-CI
I would be very cautious using any lubricants. Anything petroleum based can very detrimental to most rubber products. You could safely try a spray silicone base product if you feel the need for lubrication.
Otherwise I keep a small pack of valve stem inserts handy.
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Good point! Thanks.
__________________
2019 20th Anniversary Edition 3120RL
2019 3500 Silverado HC, SWR, Duramax
B&W 20K for GM OEM Puck
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10-27-2023, 09:39 AM
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#5
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,363
M.O.C. #6433
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In about 12 years of using the TST on ours and removing the sensors every fall for winter storage, I never had that problem. I get just a very short puff of air and that's it.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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10-27-2023, 01:59 PM
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#6
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Site Team
Join Date: Apr 2017
Location: Colorado Rockies
Posts: 1,993
M.O.C. #19755
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Quote:
Originally Posted by BB_TX
In about 12 years of using the TST on ours and removing the sensors every fall for winter storage, I never had that problem. I get just a very short puff of air and that's it.
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Interesting. I have had it happen 4-5 times in the last few years. My sensors come off/on twice a year. Maybe I have a bad sensor that is doing something weird to the valve core? I'll have to pay attention to see if it always the same one.
__________________
Scott & Alta
2017 Montana 3160RL, Legacy, Onan 5.5Kw, Solar
2022 F-450 Lariat Ultimate
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