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Home >> Chevrolet >> 2004 >> Impala SS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System 3.8L (Introduction) >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Installation Procedure
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Installation Procedure

NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Install the PCM to the PCM electrical connectors.

    Tighten:  Tighten the connectors to 8 N.m (71 lb in).

  2. Install the PCM and the wiring harness to the air cleaner housing assembly (3).
  3. Install the air cleaner housing cover (1).
  4. Install the air cleaner housing cover screws (2).

    Tighten:  Tighten the screws to 4 N.m (35 lb in).

  5. Fig 1: View Of Air Cleaner Housing, Bolts, PCM & Harness
    GM444496Courtesy of GENERAL MOTORS CORP.
  6. Install the air cleaner intake duct. Refer to Air Cleaner Intake Duct Replacement .
  7. Install the left front inner fender brace. Refer to Brace Replacement - Front Fender Upper Diagonal in Body Front End.
  8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  9. The new PCM must be programmed. Refer to Service Programming System (SPS) in Programming.