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10-15-2021, 07:34 PM
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#1
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Montana Master
Join Date: Jan 2018
Location: Austin
Posts: 2,416
M.O.C. #21044
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TST507 phantom alarms
I have a TST507 tire monitoring system - first trip! I have experienced two “ phantom alarms” on the road. Alarm went off and showed something like “371 degrees” on a tire. I silenced the alarm, even turned it off and let it reboot after the first alarm. Anyway - I assume this is normal from time to time…maybe crossed up signals from a passing 18 wheeler. Anyway - is this normal? It does cause the heart rate to increase until I figured out it was a bogus alarm.
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MikenDebbie Aggie ‘77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
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10-15-2021, 08:27 PM
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#2
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Established Member
Join Date: Dec 2018
Location: Ellisville
Posts: 49
M.O.C. #23128
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I have the 507's and have not experienced anything like that in 8000 miles with them. Are you using the repeater for a stronger signal?
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2016 Ram 2500 Laramie 6.7 CTD 4WD,
Air-Lift Bags w/compressor, retrax bed cover
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10-15-2021, 08:48 PM
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#3
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,363
M.O.C. #4831
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I have a TST507 with a repeater and have experienced a High Temp alarm on a wheel from out of nowhere. Mine went to from a normal 90+ to 278 degrees almost instantly. Once my heart started beating again, I turned it off/on, saw normal temps and went off to change my shorts.
I called TST and they did say it happens. If you have an atomic clock in your rig and it is powered on, apparently the update signal is the same freq as the sensors and may cause an invalid (their temp sensor will not go that high) alarm. It supposedly is documented in their manual but I have not verified it. The second time it occurred I was much less concerned.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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10-15-2021, 08:58 PM
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#4
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,697
M.O.C. #12947
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We've had out 507 for a long time, and have occasionally had the alarm go off for numbers in the 500 range, and one place in Quartzsite it would do the same thing every time. Our display/receiver was the old black and white model. At last year's western rally in Couer d'Alene, there was a rep from TST, and I told him what we were experiencing, and he said the newer color display/receiver had a more sophisticated electronic package and likely would prevent these false alarms, so I purchased the new display, and so far, no false alarms. The real test will be in January when we make the turn in Quartzsite where we always got the false alarm. I guess what happens is, you get a signal in the proper frequency that triggers the false alarm, from where, who knows, but it does, so hopefully this fixes the problem. I don't think there really is anything wrong with the TST, but it's just susceptible to these bad signals.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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10-16-2021, 04:14 AM
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#5
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Montana Master
Join Date: Nov 2013
Location: Willow Spring, NC
Posts: 992
M.O.C. #13909
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TST older units need a firmware update to fix the high temps phantom alarms when you are around other users. I only experienced them at truck stops and campgrounds. My choices were to sent the old display back to TST for a fee firmware update or just buy a new color display which has much better viability. I chose the new unit.
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Jim & Martha Abernathy
2014 Montana 3402RL Level UP, Sailun S637's, TST 507, 500W solar
2014 Ram 3500 Laramie® 4x2 diesel dually crew-cab 3.73 axle, Reese R20
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10-16-2021, 04:16 AM
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#6
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Montana Master
Join Date: Jan 2018
Location: Austin
Posts: 2,416
M.O.C. #21044
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I have a signal booster in the front compartment. I also have atomic clock sensors hanging in each propane compartment. Oh well…thanks for the info. I will just deal with it.
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MikenDebbie Aggie ‘77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
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10-16-2021, 10:12 AM
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#7
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,363
M.O.C. #4831
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Just to clarify, my TST is brand new as of July and has the new color screen. So it definitely is not a problem with just the older pieces parts.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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10-17-2021, 05:18 AM
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#8
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,140
M.O.C. #25165
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May not be your problem since this is your first trip, but I had that on 2 tires recently, changed the batteries in the sensor and all OK now. Mine are about 2 years old though. I have been getting "Tire Pressure Sensor Fault" errors on the truck lately also. It seems to appear in certain areas that I drive and does eventually reset itself. I think something is interfering with the signal from the Ford built in TPMS.
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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10-17-2021, 09:21 AM
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#9
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Montana Master
Join Date: Mar 2015
Location: Sequim
Posts: 527
M.O.C. #17176
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Mike why don’t you call TST they have great customer service.I’m sure they can help with your problem
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Dan & Sandy Huhn
2016 Montana 3720 2015 Chevy 3500 SWD Duro Max
Prev 2012 High Country 313RE 2012 Chevy 2500 DMax
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10-17-2021, 10:07 AM
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#10
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,697
M.O.C. #12947
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Quote:
Originally Posted by RMcNeal
May not be your problem since this is your first trip, but I had that on 2 tires recently, changed the batteries in the sensor and all OK now. Mine are about 2 years old though. I have been getting "Tire Pressure Sensor Fault" errors on the truck lately also. It seems to appear in certain areas that I drive and does eventually reset itself. I think something is interfering with the signal from the Ford built in TPMS.
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On your truck, you are very close to needing to replace the wheel sensors because the batteries in them are only good for around 7 to 8 years. I had to have all of ours replaced a couple years ago.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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