GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 Savana 🢒 Engine 🢒 Engine Electrical 🢒 Exhaust Manifold Replacement

Removal Procedures

    Object Number: 104973 Size: SH
  1. Remove the engine cover from the vehicle. Refer to Engine Cover Replacement in Interior Trim.
  2. Remove the transmission oil level indicator tube.
  3. Raise the vehicle enough to remove the both front wheels to gain access to the glow plugs.
  4. Remove the splash shields from the frame to the wheel housing. Refer to Wheelhouse Splash Shield Replacement in Body Front End.

    5. Important: To remove the glow plugs from NO. 1, 3, 2 and 4 cylinders, you may have to remove them through the wheel well.


    Object Number: 65002 Size: SH
  5. Remove the glow plugs from the cylinder head.
  6. Raise the vehicle and support with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.

    7. Object Number: 68327 Size: SH
  7. Remove the exhaust manifolds from the cylinder head.
  8. Inspect and clean the sealing surfaces on the cylinder head and the exhaust manifold.

Installation Procedures

    Object Number: 68327 Size: SH
  1. Install the exhaust manifold to the cylinder head (right side shown).

    2. Object Number: 68327 Size: SH
  2. Install the exhaust manifold bolts (right side shown).

    3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

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

  3. Install the exhaust pipe from the turbocharger to the exhaust manifold. Refer to Turbocharger Replacement .

    4. Object Number: 65002 Size: SH
  4. Install the glow plugs in the cylinder head.
  5. Install the splash shields from the frame to the wheel housing. Refer to Wheelhouse Splash Shield Replacement in Body Front End.
  6. Install both front wheels (if removed) and lower the vehicle.

    7. Object Number: 104973 Size: SH
  7. Install the transmission oil level indicator tube.
  8. Install the engine cover in the vehicle. Refer to Engine Cover Replacement in Interior Trim.