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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 >> Pressure Regulator Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the transmission filter. Refer to Automatic Transmission Fluid/Filter Replacement .
  2. Compress the reverse boost valve sleeve into the bore of the oil pump to release tension on the reverse boost valve retaining ring.
    Fig 1: Locating Reverse Boost Valve
    GM687542Courtesy of GENERAL MOTORS CORP.
  3. Remove the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve.
  4. Remove the reverse boost valve sleeve (5) and the reverse boost valve (4).
    Fig 2: View Of Reverse Boost Valve, Pressure Regulator Valve & Components
    GM298157Courtesy of GENERAL MOTORS CORP.
  5. Remove the pressure regulator isolator spring (3) and the pressure regulator valve spring (2).
  6. Remove the pressure regulator valve (1).
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