Cleaning Procedure

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Fig 1: Cleaning Crankshaft With Solvent

Courtesy of GENERAL MOTORS CORP.

Important: Use care when handling the crankshaft. Avoid damage to the bearing surfaces or the lobes of the crankshaft position reluctor ring. Damage to the teeth of the crankshaft position reluctor ring may effect On-Board Diagnostics (OBD) II system performance.

Clean the crankshaft with solvent.
Thoroughly clean all oil passages and inspect for restrictions or burrs.
CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
Dry the crankshaft with compressed air.