TPMS odd behaviour

[Santa-2512]

Last year i kept getting a TPMS error for low pressure on the front sensor,

Checked pressure - ok so reset with the GS 911

Fast forward to this year, ive started to notice the front Sensor reporting a pressure of 1.9 bar, the rear 2.2 as normal

Then it dropped to 1.8, so i figured something was amis

So i stuck my portable compressor on it

Sure enough 1.5 bar, so i shot it up to 2.4

disconnected it, and faffed about doing other bike shit.


Just before i replaced the valve cap, i did the old spit test, and lo and behold bubbles

AHA, so i did it again to confirm, and yes bubbles

so i stabbed the valve and let it reseal - this time no bubbles, but just in case i put the pump back on it

Again 1.5Bar, so i shot it back to 2.4

turned on, and the TPMS said 2.5 rear and 1.8 front , so i gave it a bit more - 2.5 bar showing but still only 1.9 on the kombi


Ran it to and from work to get some warmth into the tyres

The rear went up to 2.6 , but the front stays static at 1.9


MY moneys on a dying sensor, but if it is, its staying in until when i change the tyre later in the year

 

[RadioFlyer]

When you go to replace the sensor this may be of assistance

https://valleybmwriders.com/media/kunena/attachments/1063/SchraderReplacementSensorsV2.pdf

 

[AJJCornish]

Have you activated the "Temp" readings on the TPMS with the GS911? Quite useful to actually see the tyre temp rise...my rear shows warmer than the front, which is understandable as it works harder. I replaced both sensors with ones from Amazon with no issues to date.