Impreza WRX STI F4-2.5L Turbo (2008)
Tire Pressure Sensor: Service and Repair
TRANSMITTER (SNAP IN TYPE)
REMOVAL
1) Remove the wheels from the vehicle.
2) Remove the tires from wheels.
CAUTION: Use a tire changer when removing the tire from the wheel.
3) Loosen the screw to remove the transmitter from the valve stem.
NOTE: Replace the valve and screw with a new part when reusing transmitter.
4) Remove the valve from the wheel.
INSTALLATION
CAUTION: Use the new transmitter assembly or replace the new valve and screw, when installing.
1) Replace the valve and screw with a new part when reusing transmitter.
Tightening torque: 1.4 N-m (0.14 kgf-m, 1 ft-lb)
2) Install the transmitter to the wheel by aligning it with valve hole.
NOTE: When using the jig that pulls the valve cap by hooking its neck part, use another short-type cap.
3) Install the tires to wheels.
CAUTION:
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Use a tire changer when installing tire to wheel.
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To prevent damaging the transmitter, set the tire changer boom in the position as shown in the figure.