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Home >> Chevrolet >> 2004 >> Cutaway 4.8 V >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Control System - 4.3L (Introduction)) >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Savana and 2004 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Powertrain Control Module (PCM)
    GM1204499Courtesy of GENERAL MOTORS CORP.
  1. Install the PCM to the PCM mounting tray.
  2. Secure the spring latch to the PCM.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Connect the PCM connectors to the PCM.

    Tighten:  Tighten the PCM connector end fasteners to 8 N.m (71 lb in).

  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  5. If a new PCM is being installed, program the PCM. Refer to Service Programming System (SPS) in Programming.
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