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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 999 (Automatic Transmission - ALLISON (Introduction, Service & Replacement)) >> Repair Instructions >> Transmission Control Module (TCM) Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect the TCM electrical connectors (2) to the TCM.
  2. Install the TCM to the cover.
    Fig 1: Installing The TCM To The Cover
    GM711689Courtesy of GENERAL MOTORS CORP.
  3. Using the alignment tabs (1), install the cover and module to the radiator shroud.
    Fig 2: Installing The Cover And Module To The Radiator Shroud
    GM711690Courtesy of GENERAL MOTORS CORP.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 3: Install The TCM Cover Bolts
    GM711679Courtesy of GENERAL MOTORS CORP.
  4. Install the TCM cover bolts (1) to the radiator shroud.

    Tighten:  Tighten the bolts to 9 N.m (80 lb in).

  5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery)Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
  6. Reprogram the TCM. Refer to Transmission Control Module Reprogramming Procedures .
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