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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Mechanical - 5.7L (LS6)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Valley Cover Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: All gasket surfaces should be free of oil or other foreign material during assembly.
  1. Install NEW knock sensor oil seals (1) into the valley cover (2).

    Lubricate the seal surfaces with clean engine oil.

    Fig 1: View Of Knock Sensor Oil Seals & Cover
    GM490851Courtesy of GENERAL MOTORS CORP.
    2. Fig 2: Installing/Removing Valley Cover & Bolts
    GM668798Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the engine valley cover and a NEW gasket.
  3. Install the engine valley cover bolts.

    Tighten:  Tighten the engine valley cover bolts to 25 N.m (18 lb ft).

    4. Fig 3: View Of Knock Sensors
    GM309864Courtesy of GENERAL MOTORS CORP.
  4. Install the knock sensors.

    Tighten:  Tighten the knock sensors to 20 N.m (15 lb ft).

    5. Fig 4: View Of Knock Sensor Wire Harness
    GM309859Courtesy of GENERAL MOTORS CORP.
  5. Connect the knock sensor wire harness electrical connectors.
  6. Install the rubber grommets into the valley cover.
  7. Install the intake manifold. Refer to Intake Manifold Replacement .
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