Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

Remove the right secondary camshaft drive chain. Refer to Secondary Camshaft Drive Chain Replacement - Right .
Remove the left secondary drive chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Replacement - Left .
Remove the left camshaft cover. Refer to Camshaft Cover Replacement - Left .
Ensure both camshaft sprocket drive pins are at the top of their rotation.

Fig 1: Identifying Sprocket Drive Pins At Top Rotation
Courtesy of GENERAL MOTORS CORP.

WARNING: The camshaft holding tools must be installed on the camshafts to prevent camshaft rotation. When performing service to the valve train and/or timing components, valve spring pressure can cause the camshafts to rotate unexpectedly and can cause personal injury
Install the J 44212 over the camshafts.

Fig 2: Installing J 44212
Courtesy of GENERAL MOTORS CORP.
Use an open end wrench on the hex cast into the camshaft in order to prevent the camshaft from rotating when removing the camshaft sprocket bolt.

Fig 3: Using Open End Wrench On Hex Cast
Courtesy of GENERAL MOTORS CORP.
Remove the left intake camshaft sprocket bolt.

Fig 4: Removing Left Intake Camshaft Sprocket Bolt

Courtesy of GENERAL MOTORS CORP.

Slide the left intake camshaft sprocket off of the camshaft and remove the left secondary camshaft drive chain from the camshaft sprocket teeth.
Lift the left secondary camshaft drive chain from the camshaft intermediate drive shaft sprocket teeth.
Remove the left secondary camshaft drive chain from the engine.

Fig 5: Removing Left Secondary Camshaft Drive Chain
Courtesy of GENERAL MOTORS CORP.