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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 273 (Automatic Transmission Servicing) >> Removal & Installation >> TFP Manual Valve Position Switch >> Removal

TFP Manual Valve Position Switch: Removal

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the case side cover. See CASE SIDE COVER  . Disconnect the transaxle wiring harness.
  2. Remove the control valve body bolts (375, 379 and 381) that mount the fluid pressure manual valve position switch to the control valve body (300). See Fig 1 .
  3. Carefully remove the fluid pressure manual valve position switch. Handle the switch carefully, the fluid pressure manual valve position switch is very delicate. Inspect the fluid pressure manual valve position switch (395) for the following conditions:
    • Damaged electrical connector terminals.
    • Damaged seals.
    • Damaged switch membranes.
    • Debris on the switch membranes.
    NOTE: When removing the TFP switch handle the switch carefully, the fluid pressure manual valve position switch is very delicate.
Fig 1: Removing & Installing Transmission Fluid Pressure Manual Valve Position Switch
G00087739Courtesy of GENERAL MOTORS CORP.