Valve Stem Diameter

WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. 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 in Fig 1. Verify the diameter is within specification.
- Refer to the appropriate ENGINE article for the procedure.
- If out of specification, install new components as necessary. Refer to the appropriate ENGINE article for the procedure.
  
  Fig 1: Measuring Diameter Of Valve Stem
  Courtesy of FORD MOTOR CO.