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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> 2-4 Servo >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the exhaust pipe. Refer to Exhaust Manifold Pipe Replacement (6.0L, 6.6L, and 8.1L Engines) in Engine Exhaust.
  2. Remove the heat shield bolts.
  3. Remove the heat shield.
    Fig 1: View Of Heat Shield/Exhaust Pipe Hanger Bracket & Bolts
    GM858548Courtesy of GENERAL MOTORS CORP.
  4. Remove the oil pan bolt below the servo.
  5. Install the J 29714-A  . See Special Tools .
    Fig 2: Compressing The Servo Cover Using J 29714-A
    GM14478Courtesy of GENERAL MOTORS CORP.
  6. Tighten the bolt on J 29714-A  in order to compress the servo cover. See Special Tools .
    7. Fig 3: Removing Servo Cover Ring
    GM642680Courtesy of GENERAL MOTORS CORP.
  7. Remove the servo cover ring.
  8. Remove the J 29714-A  . See Special Tools .
    9. Fig 4: Removing Servo Cover And O-Ring Seal
    GM645364Courtesy of GENERAL MOTORS CORP.
  9. Remove the servo cover and O-ring seal. If the cover is hung up on the seal, use a pick (2) in order to pull and stretch the seal (1) out of the groove. Cut and remove the O-ring seal before removing the cover.
    10. Fig 5: View Of 2-4 Servo
    GM642523Courtesy of GENERAL MOTORS CORP.
  10. Remove the 2-4 servo.
  11. Inspect the 4th apply piston, 2-4 servo converter, 2nd apply piston, and the servo piston inner housing for the following defects:
    • Cracks
    • Scoring
    • Burrs and nicks
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