Valve Stem Diameter
- Measure the diameter of each intake and exhaust valve stem at the points shown. Verify the diameter is within specification.
- Refer to ENGINE-2.0L ZETEC or ENGINE-3.0L (4V) for specifications .
- If out of specification, install new components as necessary. Refer to ENGINE-2.0L ZETEC or ENGINE-3.0L (4V) for the procedure .