GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 Montana SV6 🢒 Engine 🢒 Engine Exhaust 🢒 Exhaust Seal Replacement

Removal Procedure

    Object Number: 260064 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .

    2. Notice: Refer to Catalytic Converter Movement Notice in the Preface section.

  2. Remove the exhaust manifold to catalytic converter nuts.

    3. Important: Suitably support the exhaust system where hangers are removed.

  3. In order to remove the exhaust seal disconnect any hangers necessary to reposition the exhaust system.
  4. Reposition the exhaust system.

    5. Object Number: 107855 Size: SH
  5. Remove the exhaust manifold pipe gasket.

Installation Procedure

    Object Number: 107855 Size: SH
  1. Install the exhaust manifold pipe gasket.

    2. Object Number: 260064 Size: SH
  2. Return the exhaust system to the proper position.
  3. Connect any hangers.

    4. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the exhaust manifold to catalytic converter nuts.

    5. Tighten
    Tighten the nuts to 35 N·m (26 lb ft).

  5. Remove the exhaust system support.
  6. Inspect the exhaust system for leaks and underbody contact.
  7. Lower the vehicle.