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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - On Vehicle >> Valve Body and Pressure Switch Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Locating Valve Body Check Balls
    GM676923Courtesy of GENERAL MOTORS CORP.
  1. Install the checkballs (1-7) in the valve body.
    2. Fig 2: View Of Valve Body To Transmission Case
    GM678315Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Keep the control valve body level when raising it to the transmission case. This will prevent the loss of checkballs located in the control valve body passages.
  2. Install the control valve body to the transmission case while simultaneously connecting the manual valve link to the manual valve.
    3. Fig 3: Verifying Manual Valve Link Is Installed Properly To Inside Detent Lever & Manual Valve
    GM670822Courtesy of GENERAL MOTORS CORP.
  3. Verify that the manual valve link (3) is installed properly to the inside detent lever (1) and the manual valve (2).
  4. Install one bolt (M6 X 1.0 X 47.5) hand tight in the center of the valve body to hold it in place.
    5. Fig 4: Locating Valve Body Bolts
    GM1220976Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: When installing bolts throughout this procedure, be sure to use the correct bolt size and length in the correct location as specified.
  5. Do not install the transmission fluid indicator stop bracket and bolt at this time, if equipped

    Install but do not tighten the control valve body bolts securing only the valve body directly.

    Each numbered bolt location corresponds to a specific bolt size and length, as indicated by the following:

    • M6 X 1.0 X 65.0 (1)
    • M6 X 1.0 X 54.4 (2)
    • M6 X 1.0 X 47.5 (3)
    • M6 X 1.0 X 17.7 (4)
    • M6 X 1.0 X 35.0 (5)
    6. Fig 5: View Of Transmission Fluid Pressure Switch & Bolts
    GM29454Courtesy of GENERAL MOTORS CORP.
  6. Install the TFP manual valve position switch.
  7. Install but do not tighten the control valve body bolts securing the TFP manual valve position switch to the control valve body.
    8. NOTE: Refer to Fastener Notice .
    NOTE: Do not over-tighten the bolts. Over-tightening the bolts will distort the valve bores. Begin tightening from the center of the valve body tighten the bolts in a outward direction.
  8. Tighten the control valve body bolts in a spiral pattern starting from the center and working outward.

    Tighten:  Tighten the control valve body bolts to 11 N.m (97 lb in).

    9. Fig 6: Identifying Manual Detent Spring
    GM71461Courtesy of GENERAL MOTORS CORP.
  9. Install the manual detent spring and bolt.
  10. Ensure that the manual detent spring is aligned properly with the detent lever.

    Tighten:  Tighten the manual detent spring bolt to 31 N.m (23 lb ft).

    11. Fig 7: View Of TCC Solenoid & Wiring Harness
    GM71463Courtesy of GENERAL MOTORS CORP.
  11. Install the TCC solenoid with a new O-ring seal to the valve body.
    12. Fig 8: View Of TCC Solenoid Retaining Bolts
    GM670430Courtesy of GENERAL MOTORS CORP.
  12. Install the TCC solenoid bolts.

    Tighten:  Tighten the TCC solenoid retaining bolts to 11 N.m (97 lb in).

    13. Fig 9: View Of TCC PWM Solenoid & Retainer
    GM670428Courtesy of GENERAL MOTORS CORP.
  13. Install the TCC/PWM solenoid (1) to the control valve body.
  14. Install the TCC/PWM solenoid retainer (2).
    15. Fig 10: Fluid Indicator Stop Bracket & Bolt
    GM670310Courtesy of GENERAL MOTORS CORP.
  15. RWD ONLY:

    Install the transmission fluid indicator stop bracket (1) and bolt (2).

    Tighten:  Tighten the transmission fluid indicator stop bracket bolt to 11 N.m (97 lb in).

    16. Fig 11: Identifying Electrical Components In Valve Body
    GM880285Courtesy of GENERAL MOTORS CORP.
  16. Snap the wiring harness in place on the valve body bolts. Ensure the harness loom tab is located under the TFP switch.
  17. Connect the internal wiring harness electrical connectors to the following components:
    • The TFP manual valve position switch (1)
    • The 1-2 shift solenoid (2)
    • The 2-3 shift solenoid (3)
    • The pressure control solenoid (4)
    • The TCC/PWM solenoid (5)
    • The 3-2 shift solenoid (6)
  18. Install the transmission filter and oil pan. Refer to Automatic Transmission Fluid and Filter Replacement .
    19. 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.
  19. Reset the TAP values. Refer to Transmission Adaptive Functions .
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