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Valve Spring Strength

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools

Illustration Tool Name Tool Number
GF0000211Courtesy of FORD MOTOR CO.
Pressure Gauge, Valve/Clutch Spring 303-006 (TOOL-6513-DD) or equivalent
NOTE: Refer to ENGINE - 2.3L , ENGINE - 2.3L HYBRID or ENGINE - 3.0L (4V) for the specification.
  1. Use the Valve/Clutch Spring Pressure Gauge to check the valve spring for correct strength at the specified valve spring length.
  2. Fig 1: Identifying Pressure Gauge Valve
    GF0040879Courtesy of FORD MOTOR CO.