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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1819 (Engine Mechanical - 3.5L (L66)) >> Repair Instructions >> On Vehicle Repair Instructions >> Camshaft Replacement - Left Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the battery. Refer to Battery Replacement (2.2L (L61) and 3.5L (L66)) or Battery Replacement (2.4L (LAT)) .
  2. Remove the battery tray. Refer to Battery Tray Replacement (2.2L (L61)) or Battery Tray Replacement (2.4L (LAT)) or Battery Tray Replacement (3.5L (L66)) .
  3. Drain the engine coolant. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (GE 47716 Fill) .
  4. Remove the upper radiator hose.
  5. Remove the exhaust gas recirculation (EGR) valve. Refer to Exhaust Gas Recirculation Valve Replacement .
  6. Remove the left rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left Side .
  7. Remove the left camshaft drive sprocket. Refer to Camshaft Drive Sprocket Replacement - Left Side .
    8. Fig 1: Identifying Rocker Shaft Retaining Bolts
    GM897125Courtesy of GENERAL MOTORS CORP.
  8. Alternately loosen the rocker shaft retaining bolts a few turns at a time using the loosening sequence.
  9. Remove the rocker arm and shaft assembly.
    10. Fig 2: Identifying Rear Camshaft Cap, Bolts, O-Ring, Cam & Seal
    GM897133Courtesy of GENERAL MOTORS CORP.
  10. Remove the rear camshaft cap, bolts, and O-ring.
  11. Remove the camshaft from the cylinder head.
  12. Remove the camshaft seal.
  13. Clean all of the bearing surfaces.
  14. Clean all of the sealing surfaces.
  15. Clean and inspect the camshafts. Refer to Camshafts Cleaning and Inspection .
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