For 1990-2009 cars

1. Clean the camshaft timing components in solvent.

Caution: Refer to Safety Glasses Caution in the Preface section.

2. Dry the components with compressed air.
3. Inspect the camshaft timing chain for binding or wear.

Important: If the sprocket or sprockets must be replaced, replace both sprockets to ensure timing chain centerline alignment is maintained.

4. Inspect the camshaft and crankshaft sprockets for the following conditions:

• | Worn teeth (1)

• | Damaged teeth (2)

• | Chipped teeth (3)

• | Uneven wear on one edge of the teeth

• | Worn valleys between the sprocket teeth

• | Crankshaft sprocket keyway for wear