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Home >> Isuzu >> 2007 >> i-290 LS, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2) >> Repair Instructions >> Repair Instructions - On Vehicle >> Pressure Regulator Replacement >> Removal Procedure

Removal Procedure

  1. Remove the transmission oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .
  2. Fig 1: Locating Reverse Boost Valve
    GM687542Courtesy of GENERAL MOTORS CORP.
  3. Compress and hold 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.
  5. Fig 2: View Of Reverse Boost Valve, Pressure Regulator Valve & Components
    GM298157Courtesy of GENERAL MOTORS CORP.
  6. Remove the following from the oil pump:
    1. The reverse boost valve sleeve (5).
    2. The reverse boost valve (4).
    3. The pressure regulator isolator spring (3).
    4. The pressure regulator valve spring (2).
    5. The pressure regulator valve (1).