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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 - Right 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)) .
  2. Remove the battery tray. Refer to Battery Tray Replacement (3.5L (L66)) .
  3. Remove the underhood fuse/relay box.
  4. Disconnect the fuel feed line from the fuel rail. Refer to Fuel Hose/Pipes Replacement - Chassis .
  5. Disconnect the engine harness connectors to gain access.
  6. Remove the powertrain control module (PCM). Refer to Powertrain Control Module Replacement .
  7. Remove the right rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Right Side .
  8. Remove the right camshaft drive sprocket. Refer to Camshaft Drive Sprocket Replacement - Right Side .
    9. Fig 1: Rocker Shaft Right Side Retaining Bolt Loosening/Tightening Sequence
    GM1308051Courtesy of GENERAL MOTORS CORP.
  9. Alternately loosen the rocker shaft retaining bolts a few turns at a time using the loosening sequence.
  10. Remove the rocker arm and shaft assembly.
    11. Fig 2: View Of Camshaft Journals
    GM897137Courtesy of GENERAL MOTORS CORP.
  11. Remove the rear camshaft cap, bolts, and O-ring.
  12. Remove the camshaft from the cylinder head.
  13. Remove the camshaft seal.
  14. Clean all of the bearing surfaces.
  15. Clean all of the sealing surfaces.
  16. Clean and inspect the camshafts. Refer to Camshafts Cleaning and Inspection .
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