LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 707 (Engine Exhaust System) >> Repair Instructions >> Catalytic Converter Replacement (RPO LE5) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Engine Harness Electrical Connectors - Top Of Engine
    GM1647986Courtesy of GENERAL MOTORS CORP.
  1. If equipped with regular production option (RPO) MN5, remove the heated oxygen sensor (HO2S) connector position assurance (CPA) retainer.
  2. Disconnect the HO2S lead from the engine harness electrical connector (4).
    3. Fig 2: Identifying Engine Harness Electrical Connectors
    GM1648166Courtesy of GENERAL MOTORS CORP.
  3. If equipped with RPO M86, remove the HO2S CPA retainer (4).
  4. Disconnect the HO2S lead from the engine harness electrical connector (5).
    5. Fig 3: Identifying Wheel Drive Shaft Heat Shield
    GM1650818Courtesy of GENERAL MOTORS CORP.
  5. Bend the heat shield trough (2) down slightly until the HO2S lead (1) can be removed.
    6. Fig 4: Identifying HO2S
    GM1650820Courtesy of GENERAL MOTORS CORP.
  6. Remove the HO2S.
    7. Fig 5: Identifying Catalytic Converter
    GM1650814Courtesy of GENERAL MOTORS CORP.
  7. Remove the catalytic converter to muffler pipe nuts.
  8. Pull the muffler pipe rearward and down until the studs are removed from the catalytic converter.
    9. Fig 6: Identifying Catalytic Converter
    GM1650757Courtesy of GENERAL MOTORS CORP.
  9. Remove the catalytic converter pipe to exhaust manifold nuts.
  10. Remove the catalytic converter.
  11. Remove and discard the exhaust gaskets.
  12. Clean the flange mating surfaces of any remaining gasket material.
scientia non olet · About LEMON Manuals