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Home >> GMC >> 2003 >> Yukon Denali >> Repair and Diagnosis >> External Pages >> Different car >> Section 521 (Engine Mechanical (Repair Instructions -- 2 Of 3) -- 4.8L, 5.3L & 6.0L) >> Repair Instructions (Off-Vehicle - Part 2) >> Valve Rocker Arm Cover Removal - Right

Valve Rocker Arm Cover Removal - Right

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    IMPORTANT:
    • Do not remove the ignition coils from the valve rocker arm cover unless required.
    • Do not remove the oil fill tube from the cover unless service is required.
    • If the oil fill tube has been removed from the cover, install a NEW tube during assembly.
  1. Remove the ignition coil bracket bolts from the rocker arm cover, if required.
  2. Remove the ignition coil and bracket assembly from the cover.
    3. Fig 1: View Of Ignition Coil, Bracket Assembly & Bolts (Right)
    GM260090Courtesy of GENERAL MOTORS CORP.
  3. Remove the valve rocker arm cover bolts.
  4. Remove the valve rocker arm cover.
    5. Fig 2: View Of Valve Rocker Arm Cover & Bolts (Right)
    GM260084Courtesy of GENERAL MOTORS CORP.
  5. Remove the gasket (504) from the right cover.
  6. Discard the gasket.

    The bolt grommets may be used again if they are not damaged.

    7. Fig 3: View Of Valve Rocker Arm Cover Gasket
    GM1272820Courtesy of GENERAL MOTORS CORP.
  7. Remove the oil fill cap from the oil fill tube.
  8. Remove the oil fill tube, if required.
  9. Discard the oil fill tube.
    10. Fig 4: View Of Oil Fill Cap & Tube
    GM260110Courtesy of GENERAL MOTORS CORP.
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