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Tahoe / Yukon Service Manual

Camshaft Position Actuator and Solenoid Valve Diagnosis and Testing

Engine Mechanical - 5.3L L84 or 6.2L L87 | Diagnostic Information and Procedures | Document ID: 5617560 Camshaft Position Actuator and Solenoid Valve Diagnosis and Testing

  1. Measure the engine oil level. Fill, as required.
  2. Using the scan tool, inspect for diagnostic codes within the engine control module (ECM). Diagnostic System Check - Vehicle Repair, as required.
  3. Verify proper engine oil pressure and operation of the Oil Pump Oil Control Solenoid Valve {if equipped} Oil Pressure Diagnosis and Testing.
  4. Inspect the camshaft position actuator solenoid valve for proper operation. Camshaft Position Actuator Solenoid Valve Replacement If valve inspection confirms proper movement of the spool, replace the camshaft position actuator and camshaft position valve. If valve inspection confirms improper movement of the spool, replace only the camshaft position valve.
  5. Verify proper operation of the camshaft position actuator control system. Diagnostic System Check - Vehicle