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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1327 (Automatic Transmission - Mu4 (Introduction, Service & Replacement)) >> Repair Instructions >> Solenoids and Wiring Harness Replacement >> Notes

Solenoids and Wiring Harness Replacement: Notes

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  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
    7. Fig 1: Fluid Filter Screen Bolts
    GM858045Courtesy of GENERAL MOTORS CORP.
  7. Remove the 3 oil filter retaining bolts, then the filter.
    8. Fig 2: Solenoid Connectors
    GM867010Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the 4 solenoid connectors.
    9. Fig 3: Manual Detent Spring
    GM867012Courtesy of GENERAL MOTORS CORP.
  9. Remove the manual detent spring.
    10. Fig 4: Valve Body Retaining Bolts
    GM867013Courtesy of GENERAL MOTORS CORP.
  10. Loosen the 17 valve body retaining bolts.
    11. Fig 5: Disconnecting/Connecting Manual Valve Connecting Rod From Manual Lever
    GM867015Courtesy 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.
    12. Fig 6: Solenoid Bolt, Shift Solenoid, TCC Solenoid, Solenoid Bolt, Pressure Control Solenoid
    GM867018Courtesy 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.
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