GM Service Manual Online
For 1990-2009 cars only

Catalytic Converter Replacement 1.2L

Removal Procedure

    Caution: Refer to Exhaust Service Caution in the Preface section.

    Notice: Refer to Flex Decoupler Notice in the Preface section.

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


    Object Number: 1241942  Size: SH
  1. Remove the exhaust manifold cover with the bolts.

  2. Object Number: 1241943  Size: SH
  3. Remove the catalytic converter upper flange nut.

  4. Object Number: 1241944  Size: SH
  5. Remove the connecting pipe mounting bracket bolt.
  6. Remove the catalytic converter lower flange nuts.
  7. Remove the catalytic converter and the gasket.

Installation Procedure


    Object Number: 1241944  Size: SH
  1. Install the catalytic converter and the gasket.
  2. Notice: Refer to Fastener Notice in the Preface section.

    Important: Position the catalytic converter onto the exhaust manifold flange with one upper flange nut.

  3. Install the catalytic converter lower flange nuts and the connecting pipe mounting bracket.
  4. Tighten

        • Tighten the connecting pipe to catalytic converter nuts to 40 N·m (30 lb ft).
        • Tighten the connecting pipe mounting bracket bolt to 40 N·m (30 lb ft).

    Object Number: 1241943  Size: SH
  5. Install the catalytic converter upper flange nuts.
  6. Tighten
    Tighten the catalytic converter to exhaust manifold nuts to 50 N·m (37 lb ft).


    Object Number: 1241942  Size: SH
  7. Install the exhaust manifold cover bolts.
  8. Tighten
    Tighten the exhaust manifold cover bolts to 15 N·m (11 lb ft).