GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 LeSabre 🢒 Engine 🢒 Engine Cooling 🢒 Exhaust Crossover Replacement

Removal Procedure
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .

    2. Object Number: 153575 Size: SH
  2. Remove the power brake booster heat shield.

    3. Object Number: 42230 Size: SH
  3. Remove the air flow duct.
  4. Remove the bolts from the crossover pipe.
  5. Remove the crossover pipe.

Installation Procedure

    Object Number: 42230 Size: SH
  1. Position the crossover pipe to the exhaust manifolds.

    2. 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.

  2. Install the crossover pipe bolts.

    3. Tighten
    Tighten the crossover pipe bolts to 18 N·m (13 lb ft).

  3. Install the air flow duct.

    4. Object Number: 153575 Size: SH
  4. Install the power brake booster heat shield.

    5. Tighten
    Tighten the power brake booster heat shield bolts to 20 N·m (15 lb ft).

  5. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .