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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Engine Mechanical - 3.6L (Ly7) (Repair Procedures -- 4 Of 5)) >> Off-Vehicle Repair Instructions - Part 3 >> Intake Manifold Installation

Intake Manifold Installation

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Lower Intake Manifold Gasket
    GM902883Courtesy of GENERAL MOTORS CORP.
  1. Install the NEW intake manifold gasket.
    2. Fig 2: Removing & Installing Intake Manifold Assembly
    GM860803Courtesy of GENERAL MOTORS CORP.
  2. Install the intake manifold assembly.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
    IMPORTANT: Tighten the intake manifold bolts in a circular pattern starting from the center and moving outward.
  3. Install the intake manifold bolts.

    Tighten:  Tighten the intake manifold bolts to 23 N.m (17 lb ft).

    4. Fig 3: View Of Intake Manifold Brace & Bolts
    GM1306504Courtesy of GENERAL MOTORS CORP.
  4. Place the intake manifold brace to the engine front cover and intake manifold.
  5. Loosely install the bolts.
  6. First tighten the intake manifold brace bolt (1) to the intake manifold.

    Tighten:  Tighten the intake manifold brace bolt at the intake manifold to 10 N.m (89 lb in).

  7. Finally tighten the intake manifold brace bolt (2) to the engine front cover.

    Tighten:  Tighten the intake manifold brace bolt to the engine front cover to 65 N.m (48 lb ft).

    8. Fig 4: Removing & Installing EVAP Solenoid
    GM946076Courtesy of GENERAL MOTORS CORP.
  8. Install the EVAP solenoid.
  9. Install the EVAP solenoid bolt.

    Tighten:  Tighten the EVAP solenoid bolt to 10 N.m (89 lb in).

    10. Fig 5: Identifying EVAP Hose Between Upper Intake Manifold & EVAP Solenoid
    GM946068Courtesy of GENERAL MOTORS CORP.
  10. Connect the EVAP hose to the upper intake manifold and EVAP solenoid.
    11. Fig 6: View Of PCV Dirty Air Tube
    GM902887Courtesy of GENERAL MOTORS CORP.
  11. Connect the PCV tube assembly to the upper intake manifold and the right camshaft cover.
  12. Install the PCV tube assembly bracket bolts.

    Tighten:  Tighten the PCV tube assembly bracket bolts to 10 N.m (89 lb in).

    13. Fig 7: Removing & Installing Brake Booster Hose
    GM946063Courtesy of GENERAL MOTORS CORP.
  13. Install the brake booster hose to the upper intake manifold.
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