Removal Procedure

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

Remove the camshaft timing chain. Refer to Camshaft Timing Chain Replacement .
Courtesy of GENERAL MOTORS COMPANY

NOTE:
Depending on the crankshaft, two different marks (1) and (3) or none (2) can be located on the crankshaft sprocket.

Mark the crankshaft sprocket align with the timing chain idler sprocket if there is no mark.
Courtesy of GENERAL MOTORS COMPANY

Install the EN-51141 fixing tool (1) to the timing chain idler sprocket (2).
Courtesy of GENERAL MOTORS COMPANY

Timing Chain Idler Sprocket Bolt (1) - Remove [3x]

NOTE:

If the timing chain idler sprocket reused, do not remove the EN-51141 fixing tool (5).