Pump Chain and Sprocket

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

Clean and inspect the pump chain and sprocket assembly for damage or wear and install new components as necessary.
- Check the drive chain for wear, damage, stretching or tightness of the chain links.
- Check the chain sprockets for excessive wear in the chain contact areas and thrust washer areas.
  
  Fig 1: Locating Chain Sprockets For Excessive Wear In Chain Contact Areas
  Courtesy of FORD MOTOR CO.