GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 Park Avenue 🢒 Engine 🢒 Engine Mechanical - 3.8L 🢒 Exhaust Manifold Removal

Exhaust Manifold Removal Left Side


    Object Number: 54683 Size: SH
  1. Remove the exhaust manifold bolt and studs.
  2. Remove the exhaust manifold.
  3. Remove the exhaust manifold gasket.

Exhaust Manifold Removal Right Side


    Object Number: 36667 Size: SH
  1. Remove the EGR inlet pipe from the exhaust manifold.
  2. Remove the EGR mounting bracket bolts.
  3. Remove the EGR mounting bracket.

    4. Object Number: 347468 Size: SH
  4. Remove the heated oxygen sensor lead.

    5. Object Number: 347473 Size: SH
  5. Remove the fuel injector sight shield mounting bracket nuts.
  6. Remove the fuel injector sight shield mounting bracket.

    7. Object Number: 36682 Size: SH
  7. Remove the exhaust manifold studs.
  8. Remove the exhaust manifold.
  9. Remove the exhaust manifold gasket.

Exhaust Manifold Removal Right Side (NC8 California Emissions)


    Object Number: 36667 Size: SH
  1. Remove the EGR inlet pipe from the exhaust manifold.
  2. Remove the EGR mounting bracket bolts.
  3. Remove the EGR mounting bracket.

    4. Object Number: 511606 Size: SH
  4. Remove air injection pipe assembly nuts.
  5. Remove air injection pipe.

    6. Object Number: 540520 Size: SH
  6. Remove the heated oxygen sensor lead.

    7. Object Number: 511608 Size: SH
  7. Remove vacuum solenoid and lines.

    8. Object Number: 511603 Size: SH
  8. Remove Air Injection check valve bolts.
  9. Remove air injection check valve.

    10. Object Number: 347473 Size: SH
  10. Remove the fuel injector sight shield mounting bracket nuts.
  11. Remove the fuel injector sight shield mounting bracket.

    12. Object Number: 540523 Size: SH
  12. Remove the exhaust manifold studs.
  13. Remove the exhaust manifold.
  14. Remove the exhaust manifold gasket.