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Home >> Chevrolet >> 2021 >> Tahoe PPV, 4WD >> Repair and Diagnosis >> Collision >> Body Panels >> Body Panel Replacement >> Body Panel Replacement >> Plenum Upper Panel Replacement >> Removal Procedure

Removal Procedure

Fig 1: Plenum Upper Panel Replacement Component Location
GM5338022Courtesy of GENERAL MOTORS COMPANY
WARNING:

Refer to Collision Sectioning Warning .

NOTE:

Squeeze Type Resistance Spot Welds (STRSW) are recommended. If access to use Squeeze Type Resistance Spot Welds is not possible, MIG/MAG 8 mm (5/16 in) plug welds may be used, to replace those specific welds, unless otherwise noted: 

NOTE:

The upper plenum is mild steel. MILD STEEL .

  1. Disable the SIR system. SIR Disabling and Enabling .
  2. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection (9C1, 5W4)Battery Negative Cable Disconnection and Connection (KL9)
  3. Remove all related panels and components.
  4. Remove the sealers and anti-corrosion materials from the repair area as necessary. Anti-Corrosion Treatment and Repair
    GM5028381Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not damage or cut attaching panels and reinforcements

  5. Remove spot welds (1). [37X]
    GM5019546Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not damage or cut attaching panels and reinforcements.

    NOTE:

    The 8 mm (5/16") holes will be used for MIG/MAG welds.

    NOTE:

    Left shown, right similar.

  6. Drill 8 mm (5/16") hole to remove all spot welds (1). [2X]
    GM5035164Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left shown, right similar.

  7. Reposition body side outer (1) on upper plenum (2) as necessary to remove upper plenum.
    GM5019756Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not damage or cut attaching panels and reinforcements.

    NOTE:

    Left shown, right similar.

  8. Remove spot weld (1). [1X]
    GM5338024Courtesy of GENERAL MOTORS COMPANY
  9. Remove upper plenum (1) from the vehicle.