Crankshaft Position Sensor: Service and Repair

1. Disconnect battery ground cable and remove fan and fan shroud. Fan bolts have lefthand threads.
2. Rotate crankshaft until No. 1 piston is at TDC on compression stroke, then continue rotating until timing mark is 4.0 cm (1.575 in) after TDC as measured on damper.
3. Disconnect electrical connector to sensor from connection at bracket.
4. Raise and support vehicle, then remove bolt securing sensor bracket to side of block.
5. Rotate sensor toward block until harness is facing upward, loosen nut on rear of sensor and withdraw sensor from block.
6. Coat sensor seal with anti-seize compound, keeping compound off sensor face.
7. Insert sensor into block and ensure that projection on flywheel is aligned with sensor.
8. Hold sensor against projection on flywheel, then measure distance between engine flange and rear of sensor.
9. Pull sensor out of block until distance between flange and rear of sensor is .051 inch greater than distance measured in step 9, then secure sensor. Adjustment of sensor air gap is important to ensure proper engine operation. Gap between face of sensor and projection on flywheel should be 1.2 - 1.4 mm (.047 - .055 in).
10. Reverse remaining procedure to complete installation.