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Old 05-15-2021, 08:38 AM   #1
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Tire pressure sensor failure

I have an RVI brake and tire pressure monitor system. Recently one of the pressure sensors failed by separating. All air escaped from the tire. luckily this occurred while parked. Has anyone experienced this? Would not be good if this happened at 65 MPH. Would appreciate discussion of reliability of different tire monitoring systems.

Tony Adams
2014 Fleetwood Discovery 40E
Satellite Beach, Fl
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Old 05-15-2021, 01:05 PM   #2
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Back around 2005 I had a flex valve extender break loose from its mount and flop around until the sensor came off. On the interstate and a front tire too. Loud bang and of course a TPMS alarm. Fortunately there was a decent road shoulder so I just pulled over. Didn't lose a lot of air, so I topped the tire off and continued.

Just losing a sensor should not leave the valve stem open and air escaping, so something must have been damaged. Why did yours lose all the air?
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Old 05-15-2021, 08:10 PM   #3
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How long since you inspected your TPMS sensors for damage? I inspect each one of mine the morning before a days drive for road damage from the previous day. I'd estimate it takes me 10 minutes total.
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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Old 05-16-2021, 08:40 AM   #4
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All TPMS on sensors have batteries, usually coin cell in the 2032 or similar size. These batteries may last 6-8 years. Or they may not. Some are sealed in the device, usually inside the tire type and virtually non replaceable, some such as the after market TST 507 Flow Through series can easily by replaced with a tiny screw driver and a battery from wherever they are sold. Mine are via eBay. Walmart or a local drug store sells them too at a vastly inflated price. If that TPMS sensor is inside the tire, your local tire seller van replace the assembly but that may (WILL?) not be inexpensive.
Dave W along with my DW, Susan and our poodlepups, Callie & Molly,2011 Ford F250 6.7 CCLB, 5er Hitch Option w/B&W Hitch,,Ride Rite air bags, 2014 Montana High Country 343RL (38')w/disc brakes
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Old 05-16-2021, 09:51 AM   #5
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My TPMS beeped at me just as I was getting off the interstate about 4 miles from home. At the next red light I look at the monitor and I was losing air. About two miles later I pull over where we always unhook the truck and as soon as I get out I hear air escaping. I took the sensor off and the air stopped leaking. Another mile to my house and once we got there tried to put air in the tire, I put a little in but a little came out. Ends up I am a victim of Freightliner Recall FL-861-A (valve stem on inner dual may rub on outer rim causing damage). I still have about 65-70lbs of air in the inner tire, enough to get me to my Freightliner appointment on Wednesday to have it repaired, and both sides fixed under Recall. I only have to drive about 6 miles, so will keep it around 35-40mph on city streets to not cause any more damage.
Bob (retired Army) & Brenda (Veteran Army Nurse)
2020 Tiffin Allegro Red 37BA
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tire, tire pressure

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