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Piston - Ring-to-Groove Clearance

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the piston for ring land damage or accelerated wear.
    Fig 1: Inspecting Piston For Ring Land Damage
    G03180081Courtesy of FORD MOTOR CO.
  2. Measure the piston ring-to-groove clearance.
    • If out of specification, install new components as necessary.
    Fig 2: Measuring Piston Ring-To-Groove Clearance
    G03180082Courtesy of FORD MOTOR CO.