Sensor Drive Assembly Replacement

Camshaft And Crankshaft Sensors:

REMOVE
1. Remove cam sensor as stated in Sensor Replacement.
2. Note position of slot in rotating vane.
3. Remove bolt securing drive assembly in engine.
4. Camshaft Sensor drive assembly.

INSTALL
1. Install the Cam Sensor drive assembly with the rotating vane slot facing the power steering pump (toward the drivers side of engine) when installed in the engine with #1 cylinder T.D.C. on the compression stroke.
2. Install bolt and washer.
3. Install sensor onto drive assembly and tighten both attaching screws.
4. Time Camshaft Sensor using the following procedure:

Camshaft Sensor Adjustment:

ADJUST
The following adjustment does not affect spark timing.
1. Remove #1 spark plug and rotate engine until #1 cylinder comes up on compression stroke.
2. Mark harmonic balancer and rotate engine to 25° after T.D.C.
3. Remove plug wires from coil assembly.
4. Using weatherpack removal tool J-28742-A or equivalent remove Terminal "B" of sensor 3-way connector on the module side.
5. Probe terminal B of 3-way connector by installing a jumper into "B" and reconnecting wire removed to jumper wire.
6. Connect a voltmeter between jumper wire and ground
7. Key on, engine stopped.
8. Rotate camshaft sensor counterclockwise until the sensor switch just closes. This is indicated by the voltage reading going from high 5-12 volts to a low voltage 0-2 volts. The low voltage indicates the switch is closed.
9. Tighten retaining bolt.
10. Reinstall plug wires and plug.
11. Remove jumper wire and reinstall wire into Terminal "B".