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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 4L60-E/4L65-E (Service & Replacement) >> Repair Instructions >> Pressure Regulator Replacement >> Removal Procedure

Removal Procedure

  1. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  2. Remove the transmission oil pan and filter. Refer to AUTOMATIC TRANSMISSION FLUID/FILTER REPLACEMENT .
  3. Compress the reverse boost valve sleeve into the bore of the oil pump to release tension on the reverse boost valve retaining ring.
  4. Remove the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve.
    Fig 1: Identifying Reverse Boost Valve Retaining Ring
    G01565860Courtesy of GENERAL MOTORS CORP.
  5. Remove the reverse boost valve sleeve (5) and the reverse boost valve (4).
  6. Remove the pressure regulator isolator spring (3) and the pressure regulator valve spring (2).
  7. Remove the pressure regulator valve (1).
    Fig 2: Pressure Regulator Valve
    G01565861Courtesy of GENERAL MOTORS CORP.
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