Crankshaft Position Sensor: Service and Repair

Replacing Hall Sensor (Crankshaft Mounted Sensor)

- Disconnect the negative (-) battery cable.

- Remove all the V-belts from the crankshaft pulley.



- While holding the flywheel stationary, remove the crankshaft pulley center mounting bolt.



- Remove the pulley and its woodruff key.

- If necessary remove the Hall sensor field rotor from the pulley by removing the three bolts.



- Disconnect the Hall sensor connector. The connector is located below the oil dipstick tube.

- Remove the Hall sensor bolts and remove the sensor.

Installation is the reverse of removal. Use Loctite 270 on the sensor mounting bolts. Reinstall the pulley and woodruff key. Tighten the bolt while holding the flywheel steady.

NOTE A special flywheel holding fixture (Saab tool no. 853 92 987) is available from an authorized Saab dealer.

Tightening Torque
Crankshaft pulley bolt to crankshaft
1989 190 Nm (140 ft-lb)
1991 and later 175 Nm (128 ft-lb)