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Home >> Chevrolet >> 2012 >> Suburban C1500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 1902 (Engine Mechanical - Hybrid (LZ1) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Valve Rocker Arm and Push Rod Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Offset Intake Rocker Arm & Intake Rocker Arm
    GM1814082Courtesy of GENERAL MOTORS COMPANY
  1. Remove the rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left Side , or Valve Rocker Arm Cover Replacement - Right Side .
    2. NOTE:

    The engine firing order is 1, 8, 7, 2, 6, 5, 4, 3. Cylinders 1, 3, 5 and 7 are the left bank.

  2. Remove the number one cylinder spark plug. Refer to Spark Plug Replacement .
    3. NOTE:

    Place the rocker arms, pushrods, and pivot support, in a rack so that they can be installed in the same location from which they were removed.

  3. Remove the rocker arm bolts.
  4. Remove the rocker arms (1, 2).
    5. Fig 2: View Of Valve Rocker Arm Pivot Support
    GM260141Courtesy of GENERAL MOTORS COMPANY
  5. Remove the rocker arm pivot support.
    6. Fig 3: View Of Pushrods
    GM260142Courtesy of GENERAL MOTORS COMPANY
  6. Remove the pushrods.
  7. Clean and inspect the rocker arms and pushrods, if required. Refer to Valve Rocker Arm and Push Rod Cleaning and Inspection .
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