Valve Stem Diameter
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
- Measure the diameter of each intake and exhaust valve stem at the points shown. Verify the diameter is within specification.
- If out of specification, install new components as necessary. Refer to ENGINE for the procedure.