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Home >> Chevrolet >> 2017 >> Cruze LS, Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Repair Instructions >> Catalytic Converter Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Catalytic Converter Brace Bracket Nut
    GM4297923Courtesy of GENERAL MOTORS COMPANY
  1. Loosen Catalytic Converter Brace Bracket Nut (1) @Catalytic Converter (2)
    2. Fig 2: Catalytic Converter, Clamp And Gasket
    GM4276341Courtesy of GENERAL MOTORS COMPANY
  2. Install a NEW gasket.(2)
  3. Pre install the NEW catalytic converter clamp (1) to the catalytic converter (3).
    4. Fig 3: Powertrain Unit
    GM4210757Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A second technician is required.

  4. Unsupport the powertrain unit (1) and push the powertrain unit (1) against driving direction to get access for the catalytic converter installation.
    5. Fig 4: Catalytic Converter, Clamp And Gasket
    GM4276341Courtesy of GENERAL MOTORS COMPANY
  5. Install Catalytic Converter (3)
    6. Fig 5: Catalytic Converter Brace Nut And Catalytic Converter Stud
    GM4211431Courtesy of GENERAL MOTORS COMPANY
  6. Install Catalytic Converter Stud (2) - Do NOT tighten.(Qty: 2)
  7. Install Transmission Mount Strut Bracket
    8. Fig 6: Catalytic Converter Brace Nut And Catalytic Converter Stud
    GM4211431Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Fastener Caution

  8. Install Catalytic Converter Stud (2) - Tighten 9 N.m (80 lb in)
  9. Install Catalytic Converter Brace Nut (1) - Do NOT tighten.(Qty: 2)
  10. Lower the vehicle.
    11. Fig 7: Catalytic Converter Clamp
    GM4211430Courtesy of GENERAL MOTORS COMPANY
  11. Position the NEW catalytic converter clamp (1) and tighten to 6 N.m (53 lb in)
  12. Raise the vehicle.
    13. Fig 8: Catalytic Converter Brace Nut And Catalytic Converter Stud
    GM4211431Courtesy of GENERAL MOTORS COMPANY
  13. Catalytic Converter Brace Nut (1) - Tighten 22 N.m (16 lb ft)
    14. Fig 9: Catalytic Converter Brace Bracket Nut
    GM4284253Courtesy of GENERAL MOTORS COMPANY
  14. Catalytic Converter Brace Bracket Nut (1) - Tighten 22 N.m (16 lb ft)
  15. Lower the vehicle.
    16. Fig 10: Catalytic Converter Clamp
    GM4211430Courtesy of GENERAL MOTORS COMPANY
  16. Catalytic Converter Clamp (1) - Tighten 25 N.m (18 lb ft)
    17. Fig 11: Catalytic Converter Heat Shield
    GM4211407Courtesy of GENERAL MOTORS COMPANY
  17. Install Catalytic Converter Heat Shield (1)
    18. Fig 12: Catalytic Converter Heat Shield Bolt
    GM4211404Courtesy of GENERAL MOTORS COMPANY
  18. Install Catalytic Converter Heat Shield Bolt (1) and tighten 9 N.m (80 lb in)
    19. Fig 13: Exhaust Temperature Sensor
    GM4211405Courtesy of GENERAL MOTORS COMPANY
  19. Install Exhaust Temperature Sensor(1) and tighten 45 N.m (33 lb ft)
    20. Fig 14: Turbocharger Heat Shield, Bolt And Nut
    GM4211414Courtesy of GENERAL MOTORS COMPANY
  20. Install Turbocharger Heat Shield (2)
  21. Install Turbocharger Heat Shield Nut (3) and tighten 9 N.m (80 lb in)
  22. Install Turbocharger Heat Shield Bolt (1) and tighten 9 N.m (80 lb in)
    23. Fig 15: Nitrogen Oxides Sensor
    GM4325730Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do NOT bend the cable sharply at the base of either the sensing unit or sensor ECU in the final mounting position.

  23. Install Nitrogen Oxides Sensor (2) and tighten 50 N.m (37 lb ft)
  24. Raise the vehicle.
    25. Fig 16: Exhaust Front Pipe Gasket
    GM4210755Courtesy of GENERAL MOTORS COMPANY
  25. Install NEW Exhaust Front Pipe Gasket (3)
    26. CAUTION:

    Do not bend the exhaust flex pipe more than 10 degrees in any direction. Bending of more than 10 degrees or twisting in a range of ±0.5 degrees will damage the exhaust flex decoupler.

  26. Install Exhaust Front Pipe (1) @Catalytic Converter (2)
  27. Install Exhaust Front Pipe Nut(4) and tighten 22 N.m (16 lb ft)
    28. Fig 17: Catalytic Converter Heat Shield Bolt
    GM4211406Courtesy of GENERAL MOTORS COMPANY
  28. Install Catalytic Converter Heat Shield Bolt (1) and tighten 9 N.m (80 lb in)
    29. Fig 18: Exhaust Pressure Differential Sensor Hoses And Pipes
    GM4199156Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Mind the different hose diameters.

  29. Install the 2 exhaust pressure differential sensor hoses (2) to the exhaust pressure differential sensor pipes (3).
  30. Install Clamp (1)
  31. Install Front Compartment Insulator Front Compartment Insulator Replacement
  32. Lower the vehicle.
  33. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
  34. When the replacement is completed, use a scan tool to perform the appropriate reset functions. DPF Reset
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