Rapid Tire Pressure Overnight

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Rapid Tire Pressure Overnight

I inflate the tires on my Proton X70 to the correct pressure in the morning, but by the next day, one o r more tires have significantly lost pressure. There’s no visible puncture o r object in the tire. Could this be a slow leak, faulty valve stem, o r rim bead leak? How can I pinpoint the exact cause in Pakistan’s hot and varied road conditions?

Talha Kyanii asked on 19 Dec 2025 17:21:02 pm

1 Answer

12 views |

Gari Master - on 19 Dec 2025 17:22:18 pm

If your Proton X70 triggers a TPMS alert despite correct tire pressures, common causes include:

Likely Causes:

Temperature Fluctuations: Tire pressure decreases in cold and increases in heat. Pakistan’s hot days and cooler nights can trigger temporary TPMS alerts.

Sensor Calibration Drift: TPMS sensors may slowly drift over time, causing false alerts.

Weak TPMS Sensor Battery: Sensor batteries degrade over 5–10 years, especially in hot climates.

Loose o r Faulty Valve: Minor leaks around the valve stem can trigger alerts.

What to Do:
✔ Recheck tire pressures when tires are cold and reset the TPMS system.
✔ If the warning persists, have sensors scanned to identify any weak o r malfunctioning sensor.
✔ Inspect valves and ensure caps are tight.

Tip: Occasional alerts after big temperature swings are normal persistent alerts suggest a sensor o r minor leak issue.

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