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Tire Low Pressure Sensor: Installation

WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Overtightening the tire pressure sensor valve stem nut can damage the tire pressure sensor, undertightening can cause air leaks.
    CAUTION: Make sure to install a new sensor grommet or an air leak can occur.
  1. Install a new grommet on the tire pressure sensor.
  2. NOTE: Do not allow the tire to rotate relative to the rim while mounting the tire.
    Fig 1: Mounting Outside And Inside Bead Of Tire To Rim
    G03927734Courtesy of FORD MOTOR CO.
  3. Lubricate and mount the outside and inside bead of the tire to the rim.
  4. CAUTION: Overtightening the tire pressure sensor valve stem nut can damage the tire pressure sensor, undertightening can cause air leaks.
    NOTE: Sensor position is critical for correct sensor operation. The "flat" side of the sensor must be facing the wheel and the "slanted" side of the sensor must be facing away from the wheel. When correctly installed, there will be a very small gap between the sensor and the wheel.
    NOTE: Tightening the nut to 5 Nm (44 lb-in) equals approximately 2 clockwise turns after the nut has been tightened by hand.
    Fig 2: Installing Tire Pressure Sensor
    G03944106Courtesy of FORD MOTOR CO.
    Fig 3: Tightening Nut
    G03944107Courtesy of FORD MOTOR CO.
  5. Push the side wall of the tire and install the tire pressure sensor. Tighten the nut to 5 Nm (44 lb-in).
  6. CAUTION: Use only special tool 204-354 anytime tire pressures are measured to be sure that accurate values are obtained.
    CAUTION: Place the air chuck straight on the valve stem to inflate the tire. Do not cock the air chuck during the inflation cycle. Doing so can damage the valve stem and cause air leaks.
    CAUTION: Ford recommends using a round head air chuck on tire pressure sensors; it is not recommended to use air chucks with long shanks. Doing so can cause tire pressure sensor valve stem damage and loss of tire pressure.
    CAUTION: Use only OEM valve caps (aluminum or plastic valve caps) with the tire pressure sensors. Do not use brass threaded valve caps with the tire pressure sensors.
    Fig 4: Precaution Tire Pressure Sensor
    G03927723Courtesy of FORD MOTOR CO.
  7. Inflate the tire to the pressure specified on the Safety Certification Label located on the driver door or door pillar.
  8. Install the wheel and tire assembly. For additional information, refer to WHEEL AND TIRE - FRONT  or WHEEL AND TIRE - REAR .
  9. Train the tire pressure sensors. For additional information, refer toSENSOR TRAINING .