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Home >> Chevrolet >> 2004 >> S10 Pickup >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.3L (Introduction) >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Installation Procedure
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Installation Procedure

  1. Remove the replacement PCM from the packaging.
  2. Check the service number in order to make sure the service number is the same number as the defective PCM.
  3. Fig 1: View Of PCM Electrical Connectors
    GM66513Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Connect the PCM electrical connectors.

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

  5. Fig 2: View Of PCM
    GM352489Courtesy of GENERAL MOTORS CORP.
  6. Slide the PCM retainer into the PCM bracket slots.
  7. Fig 3: View Of PCM Retention Bar & Retainer
    GM352488Courtesy of GENERAL MOTORS CORP.
  8. Pull the PCM retention bar into position.