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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 528 (Engine Mechanical - 5.3L, 6.0L, 6.2L - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Camshaft Position Actuator Solenoid Valve Inspection (On-Vehicle)

Camshaft Position Actuator Solenoid Valve Inspection (On-Vehicle)

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    Fig 1: View Of Proper Valve Spool Position
    GM1714950Courtesy of GENERAL MOTORS COMPANY
    IMPORTANT:

    Do not use the camshaft position (CMP) actuator solenoid valve again. Install a NEW valve during assembly. The inspection procedure below is provided for on-vehicle diagnostic purposes only.

  1. With the CMP magnet removed, inspect for a sticking valve spool or broken valve spool spring.
  2. Depress the valve spool into the housing. The valve should move freely with no binding or sticking and minimal resistance inward. When released, the valve spring should return the spool to the proper extended position (1) of 6.08-6.12 mm (0.239-0.241 in).
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