Crankshaft and Bearings Removal

WARNING: This page is about a different variant/trim than selected.

Fig 1: View Of CKP Sensor & Bolt

Courtesy of GENERAL MOTORS CORP.

NOTE: In order to prevent damage to the crankshaft position (CKP) sensor reluctor wheel/ring care must be used when removing or installing this component.

IMPORTANT: The crankshaft position (CKP) sensor is designed to contact the reluctor wheel of the crankshaft. Wear may be noticeable on the end of the sensor.

Remove the CKP sensor bolt.
Apply penetrating oil to the CKP sensor-to-engine block mating surface. Allow the penetrating oil to soak for several minutes, to help loosen the O-ring from the engine block.
Twist the sensor to loosen the O-ring seal. When removing the sensor, pull the sensor straight out of the engine block at the same angle the sensor was installed.
Inspect both CKP sensor O-ring for cuts, cracks, tears or damage. Replace the O-ring as needed.

Fig 2: View Of Crankshaft Bearing Cap Bolts & Studs

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Crankshaft bearing caps are machined with the engine block for the proper clearances. Mark or identify each crankshaft bearing cap location and direction before removal. Crankshaft bearing caps must be installed in their original locations.

Remove the crankshaft bearing cap bolts and studs.

Fig 3: View Of Crankshaft Lower Bearing & Bearing Caps

Courtesy of GENERAL MOTORS CORP.

Remove the crankshaft bearing caps.
Remove the crankshaft bearings from the crankshaft bearing caps.

Fig 4: View Of Crankshaft

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Care should be taken when removing the crankshaft so that the CKP sensor reluctor ring is not damaged.

Remove the crankshaft.

Fig 5: View Of Crankshaft Upper Bearings

Courtesy of GENERAL MOTORS CORP.

Remove the crankshaft bearings from the engine block.