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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 >> Installation Procedure

Installation Procedure

    Fig 1: View Of Reverse Boost Valve, Pressure Regulator Valve & Components
    GM298157Courtesy of GENERAL MOTORS CORP.
  1. Install the following into the oil pump:
    1. The pressure regulator valve (1).
    2. The pressure regulator valve spring (2).
    3. The pressure regulator isolator spring (3).
    4. The reverse boost valve (4).
    5. The reverse boost valve sleeve (5).
    2. Fig 2: Locating Reverse Boost Valve
    GM687542Courtesy of GENERAL MOTORS CORP.
  2. Compress and hold the reverse boost valve sleeve into the bore of the oil pump to expose the retaining ring slot.
  3. Install the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve.
  4. Install the transmission oil filter and pan. Refer to Automatic Transmission Fluid and Filter Replacement .
    5. IMPORTANT: It is recommended that transmission adaptive pressure (TAP) information be reset.
    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.
  5. Reset the TAP values. Refer to Transmission Adaptive Functions .
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