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Intake Manifold Installation - Lower (L26)

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clean the lower intake manifold sealing surface using GM P/N 12346139 (Canadian P/N 10953463) or equivalent prior to installing any seals or gaskets.
    2. Fig 1: Cleaning Lower Intake Manifold Sealing Surface Using GM P/N 12346139 (L26)
    GM44774Courtesy of GENERAL MOTORS CORP.
  2. Install the lower intake manifold gasket.
  3. Install the lower intake manifold.
  4. Apply threadlocker 272 GM P/N 12345493, (Canadian P/N 10953488) or the equivalent to the bolt threads.
    5. NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. Install the lower intake manifold bolts.

    Tighten:  Tighten the lower intake manifold bolts in sequence to 15 N.m (11 lb ft).

  6. Install the generator brace bracket (571).
    7. Fig 2: Generator Brace Bracket
    GM1335973Courtesy of GENERAL MOTORS CORP.
  7. Install the generator brace bracket bolts (569, 570).

    Tighten:  Tighten the generator brace bracket bolts to 50 N.m (37 lb ft).

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