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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1625 (Automatic Transmission - 4L60-E - Service, Removal & Installation) >> Repair Instructions >> Valve Body and Pressure Switch Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the checkballs (1-7) into the valve body.
    Fig 1: Installing Checkballs Into Valve Body
    G01953604Courtesy of GENERAL MOTORS CORP.
  2. Install the valve body to the transmission case while simultaneously connecting the manual valve link to the manual valve.
    Fig 2: Installing Valve Body
    G01953605Courtesy 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).
    Fig 3: Ensuring Proper Installation Of Manual Valve Link
    G01953606Courtesy of GENERAL MOTORS CORP.
  4. Install one bolt (M6 X 1.0 X 47.5) hand tight in the center (1) of the valve body to hold it in place.
    Fig 4: Installing Valve Body Bolt
    G01953607Courtesy 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.

    Install but do not tighten the valve body bolts which retain 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 35.0 (4)
    • M8 X 1.0 X 20.0 (5)
    • M6 X 1.0 X 12.0 (6)
    • M6 X 1.0 X 18.0 (7)
      Fig 5: Installing Valve Body Bolts
      G01953608Courtesy of GENERAL MOTORS CORP.
  6. Install the manual detent spring.
  7. Install but do not tighten the manual detent spring bolt.
    Fig 6: Installing Manual Detent Spring
    G01953609Courtesy of GENERAL MOTORS CORP.
  8. Install the transmission fluid pressure switch.
  9. Install but do not tighten the valve body bolts which retain the transmission fluid pressure switch to the valve body.
    Fig 7: Installing Valve Body Bolts
    G01953610Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE .
    NOTE: Torque valve body bolts in a spiral pattern starting from the center. If the bolts are torqued at random, valve bores may be distorted and inhibit valve operation.
  10. Tighten the valve body bolts in a spiral pattern starting from the center, as indicated by the arrows.

    Tighten 

    Tighten the bolts in the sequence shown to 11 N.m (97 lb in).

    Fig 8: Tightening Valve Body Bolts
    G01953611Courtesy of GENERAL MOTORS CORP.
  11. Ensure that the manual detent spring is aligned properly with the detent lever.

    Tighten 

    Tighten the bolt to 11 N.m (97 lb in).

    Fig 9: Tightening Manual Detent Spring Bolt
    G01953612Courtesy of GENERAL MOTORS CORP.
  12. Install the TCC solenoid with a NEW O-ring seal to the valve body.
    Fig 10: Installing TCC Solenoid With O-Ring Seal
    G01953613Courtesy of GENERAL MOTORS CORP.
  13. Install the TCC solenoid bolts.

    Tighten 

    Tighten the bolts to 11 N.m (97 lb in).

    Fig 11: Installing TCC Solenoid Bolts
    G01953614Courtesy of GENERAL MOTORS CORP.
  14. Install the internal wiring harness to the valve body. The internal wiring harness has a tab (1) on the edge of the conduit.
    Fig 12: Installing Internal Wiring Harness
    G01953615Courtesy of GENERAL MOTORS CORP.
  15. Place the tab between the valve body and the pressure switch in the location shown (2). Press the harness into position on the valve body bolt bosses (1, 3).
    Fig 13: Valve Body & Bolt Bosses
    G01953616Courtesy of GENERAL MOTORS CORP.
  16. Install the TCC PWM solenoid (1) to the valve body.
  17. Install the TCC PWM solenoid retainer (2).
    Fig 14: Installing TCC PWM Solenoid & Retainer
    G01953617Courtesy of GENERAL MOTORS CORP.
  18. Install the transmission fluid indicator stop bracket (1) and bolt (2).

    Tighten 

    Tighten the bolt to 11 N.m (97 lb in).

    Fig 15: Installing Transmission Fluid Indicator Stop Bracket & Bolt
    G01953618Courtesy of GENERAL MOTORS CORP.
  19. Connect the internal wiring harness electrical connectors to the following components:
    • The transmission fluid pressure 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)
  20. Install the transmission filter. Refer to Automatic Transmission Fluid/Filter Replacement   . 
    Fig 16: Connecting Internal Wiring Harness Electrical Connectors
    G01953619Courtesy of GENERAL MOTORS CORP.
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