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Home >> Buick >> 2004 >> Regal LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls 3.8L (Introduction, Service & Replacement) >> 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. Fig 1: View Of Air Cleaner Housing, Bolts, PCM & Harness
    GM444496Courtesy of GENERAL MOTORS CORP.
  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. Install the air cleaner intake duct. Refer to Air Cleaner Intake Duct Replacement .
  6. Install the left front inner fender brace. Refer to Brace Replacement - Front Fender Upper Diagonal in Body Front End.
  7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  8. The new PCM must be programmed. Refer to Service Programming System (SPS) in Programming.
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