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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1787 (Automatic Transmission - Mu4) >> Automatic Transmission Oil Cooler >> Solenoids and Wiring Harness Replacement >> Notes

Solenoids and Wiring Harness Replacement: Notes

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative (-) battery cable.
  2. Raise and suitably support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  3. Remove the left engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - LEFT in Body Front End.
  4. Place a drain pan or a suitable container under the transaxle fluid pan.
  5. Allow the transaxle to cool, if necessary. Remove the transaxle drain plug (2) from the transaxle fluid pan.
  6. Remove the following components from the transaxle:
    • The 18 bolts
    • The fluid pan
    • The fluid pan gasket
    Fig 1: Removing 3 Oil Filter Retaining Bolts And Filter
    G03415465Courtesy of GENERAL MOTORS CORP.
  7. Remove the 3 oil filter retaining bolts, then the filter.
  8. Disconnect the 4 solenoid connectors.
    Fig 2: Disconnecting 4 Solenoid Connectors
    G03415466Courtesy of GENERAL MOTORS CORP.
  9. Remove the manual detent spring.
    Fig 3: Removing Manual Detent Spring
    G03415467Courtesy of GENERAL MOTORS CORP.
  10. Loosen the 17 valve body retaining bolts.
    Fig 4: Loosening 17 Valve Body Retaining Bolts
    G03415468Courtesy of GENERAL MOTORS CORP.
  11. Disconnect the manual valve connecting rod from the manual lever, then remove the 17 bolts and valve body and manual valve as an assembly.
    Fig 5: Disconnecting Manual Valve Connecting Rod From Manual Lever
    G03415469Courtesy of GENERAL MOTORS CORP.
  12. Remove the solenoid bolt (2), then remove the 2-3 shift solenoid (1) from the valve body.
  13. Remove the 1 - 2 shift solenoid (3) from the valve body.
  14. Remove the Torque Converter Clutch solenoid bolt (4), then remove the TCC solenoid (5).
  15. Remove the Pressure Control Solenoid retaining bolt and bracket (7), then remove the Pressure Control Solenoid (8) from the valve body.
    Fig 6: Removing Pressure Control Solenoid From Valve Body
    G03415470Courtesy of GENERAL MOTORS CORP.
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