2005 Cadillac STS 3.6 7FACTORY OEM SERVICE PROCEDURE

Installation Procedure

    Fig 1: View Of ECM Bracket
    GM887861Courtesy of GENERAL MOTORS CORP.
  1. Install the ECM bracket (1).
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the ECM bracket bolts (2 and 3).

    Tighten: 

    1. Tighten the ECM bracket bolt (2) to 10 N.m (89 lb in).
    2. Tighten the ECM bracket bolts (3) to 23 N.m (17 lb ft).

    3. Fig 2: View Of Engine Wiring Harness Bracket Bolt - Side Of ECM Bracket
    GM945513Courtesy of GENERAL MOTORS CORP.
  3. Install the wire harness retainer and bolt to the side of the ECM bracket.

    Tighten:  Tighten the wire harness retainer bolt to 23 N.m (17 lb ft).

    4. Fig 3: View Of Engine Wiring Harness Bracket Bolt - Top Of ECM Bracket
    GM945521Courtesy of GENERAL MOTORS CORP.
  4. Install the electrical connector bracket and bolt to the ECM bracket.

    Tighten:  Tighten the electrical connector bracket bolt to 10 N.m (89 lb in).

    5. Fig 4: View Of ECM Redundant Ground Wire Bolt
    GM1343434Courtesy of GENERAL MOTORS CORP.
  5. Install the wiring harness ground wire and bolt (2) to the ECM bracket.

    Tighten:  Tighten the wiring harness ground wire bolt 10 N.m (89 lb in).

    6. Fig 5: View Of ECM
    GM887860Courtesy of GENERAL MOTORS CORP.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.