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Home >> Cadillac >> 2011 >> Escalade Base, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 5.3L, 6.0L & 6.2L - Repair Instructions - Off Vehicle >> Repair Instructions - Off Vehicle >> Valve Lifter Oil Manifold Cleaning and Inspection

Valve Lifter Oil Manifold Cleaning and Inspection

    Fig 1: Valve Lifter Oil Manifold Electrical Lead Frame Caution
    GM1536553Courtesy of GENERAL MOTORS CORP.
    NOTE:
    • Do not allow dirt or debris to enter the oil passages of the manifold. Plug, as required.
    • Do not disassemble the electrical components from the manifold.
    • Do not submerge the electrical components in cleaning solvent.
    • Do not use the manifold exterior gasket again. Remove the exterior gasket and install a NEW service gasket during assembly.
  1. Do not lift the manifold assembly by the electrical lead frame.
    2. Fig 2: Oil Pressure Sensor, Washer And Valve Lifter Oil Filter
    GM1402008Courtesy of GENERAL MOTORS CORP.
  2. Remove the oil pressure sensor (706) and washer (707).
  3. Remove the oil screen (452) with O-ring (454). Discard oil screen.
  4. Replace oil filter with NEW filter. DO NOT re-use oil filter.
    5. WARNING:

    Refer to Safety Glasses and Compressed Air Warning .

  5. Clean the manifold with compressed air.
    6. Fig 3: Electrical Solenoids
    GM1402153Courtesy of GENERAL MOTORS CORP.
  6. Inspect for loose electrical solenoids (1-4) or loose or missing bolts.
  7. Inspect for damage to the electrical lead frame (5).
  8. Inspect for a damaged electrical connector, for bent or corroded pins.
    9. Fig 4: Sealing Gaskets
    GM1402154Courtesy of GENERAL MOTORS CORP.
  9. Inspect for damaged interior sealing gaskets (1-8). If the interior sealing gaskets are damaged, the manifold must be replaced as an assembly.
  10. Inspect for a damaged exterior sealing gasket (9) or scored gasket surfaces.
  11. Inspect for debris or restrictions within the oil passages of the manifold. Refer to Cylinder Deactivation (Active Fuel Management) Valve Lifter Oil Manifold Diagnosis and Testing .
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