What are the techniques for disassembling tires with TPMS?
3 Answers
The techniques for disassembling tires with TPMS are: the tire changer rotates clockwise, and the TPMS sensor is usually installed on the valve stem. You can start disassembling from the left side of the valve stem. Here is some relevant information about TPMS: 1. The role of monitoring: It can issue an alarm when the tire pressure is abnormal, promptly reminding the driver to take appropriate measures, thereby avoiding serious accidents. Moreover, under the same driving distance, insufficient tire pressure will consume 3.3% more fuel. By using the TPMS to constantly monitor tire conditions, you can prevent tire blowouts, save fuel, and protect the environment. 2. The impact of excessive tire pressure: When the tire pressure is too high, it reduces the contact area between the tire and the ground, and the pressure the tire bears increases proportionally, affecting the tire's grip. In addition, when the vehicle passes over bumps or uneven ground, the tire does not have enough space to absorb the vibrations. Besides affecting driving stability and ride comfort, it can also increase the impact on the suspension system.
Be extra careful when removing tires with TPMS (Tire Pressure Monitoring System), I've learned this the hard way. The key is to protect the valve stem sensor: First, use a marker to draw alignment marks on the wheel rim and tire sidewall for precise repositioning without affecting balance. When using the tire machine, employ nylon pry bars to avoid the sensor area - forcing metal tools could damage the several-hundred-dollar sensor. During tire installation, ensure the valve core gasket isn't reversed, hand-tighten first then torque to specification with a torque wrench. Use an air pump with pressure gauge for inflation, adding air in two stages to prevent bead-seating explosions from damaging the sensor. After installation, drive several kilometers for system auto-calibration, then wash off the marker traces during car washing. Remember: Any violent hammering on the tire is strictly prohibited!
I've replaced tires with TPMS myself and would like to share some practical tips. Before removal, park on level ground and engage the handbrake, then deflate the tire to 0.3Bar before loosening the bolts - otherwise the wheel rotation makes it difficult to operate. When breaking the bead, gently tap the tire sidewall with a rubber hammer to loosen the bead, being especially careful to avoid the valve stem area. The biggest concern when installing new tires is poor air sealing - apply tire mounting paste to the rim edge before pressing it in. After inflating to standard pressure, spray soapy water to check for valve stem leaks. The most fragile part of the sensor is the metal stem - be careful not to let it hit the jack during wheel installation. Resetting the system at the dealership only takes ten minutes - don't skip this step or the system might generate false trouble codes. Finally, I recommend monitoring tire pressure changes closely for three days after replacement.
