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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 369 (Engine Controls And Fuel - 5.3L, 6.0L & 6.2L - DTC P0010 Through DTC P0442) >> Diagnostic Information and Procedures >> DTC P0016 (Without 6.0L or 6.2L) >> Circuit/System Testing

Circuit/System Testing

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NOTE:

You must perform the Circuit/System Verification before proceeding with Circuit/System Testing.

  1. Inspect the engine front cover area, or review the service history of the vehicle for any recent repairs involving the timing chain, timing chain tensioner, camshaft, crankshaft, camshaft actuator, or sprockets.
    • If recent repairs were made, inspect the timing chain, timing chain tensioner, and both sprockets for proper timing alignment or indexing.
  2. Remove the engine front cover, refer to Engine Front Cover Replacement and inspect the timing chain, timing chain tensioner, and sprockets for wear or damage.
    • If any components are worn or damage, replace as necessary.
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