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Home >> GMC >> 2011 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Engine Mechanical - 2.8L Or 3.0L - Repair Instructions - Off Vehicle (2 Of 5)) >> Valve Spring Inspection and Measurement >> Measurement Procedure

Measurement Procedure

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Measuring Valve Spring Tension
    GM1210909Courtesy of GENERAL MOTORS CORP.
  1. Measure the valve spring tension using the EN 22738-B:  tester. Refer to Engine Mechanical Specifications (LF1) or Engine Mechanical Specifications (LAU or LBW) .
  2. If low valve spring load is found, replace the valve springs. DO NOT use shims to increase spring load. The use of shims can cause the valve spring to bottom out before the camshaft lobe is at peak lift.
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