buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Engine Controls - Use of Crank Sensor Adjusting Tool|Page 2668 > < Engine Controls - Use of Crank Sensor Adjusting Tool|Page 2666
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Crankshaft Position Sensor: Service and Repair

Crankshaft Sensor Positioning

*** UPDATED BY TSB #91-T-05 DATE: 9/90

The harmonic balancer on these engines is now press fit onto the crankshaft and requires the use of Tool J-38197 for removal. The torque specification
to be used during installation has also been revised. The procedure to be used when replacing the crank sensor is as follows:

REMOVAL

1.

Disconnect serpentine belt from crankshaft pulley.

2.

Raise vehicle on hoist.

3.

Remove right front tire and wheel assembly.

4.

Remove right inner fender access cover.

5.

Using 28 mm socket, remove crankshaft harmonic balancer retaining bolt.

6.

Remove crankshaft harmonic balancer using Tool (J-38197).

7.

Remove foreign object deflector (DO NOT use pry bar).

8.

Disconnect sensor electrical connector.

9.

Remove sensor and pedestal from block face.

10.

Remove sensor from pedestal.

Special Tool; Assembly

INSTALLATION

1.

Loosely install crankshaft sensor on pedestal.

Engine Controls - Use of Crank Sensor Adjusting Tool|Page 2668 > < Engine Controls - Use of Crank Sensor Adjusting Tool|Page 2666