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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 2.0L (LTG) - Repair Instructions - On Vehicle >> Repair Instructions - On Vehicle >> Turbocharger Replacement >> Installation Procedure

Installation Procedure

NOTE:

The exhaust pipe studs do not come installed on new turbochargers. If the turbocharger is being replaced, new studs will need to be installed.

    Fig 1: Exploded View Of Turbocharger
    GM2769468Courtesy of GENERAL MOTORS COMPANY
  1. Install a NEW turbocharger gasket (3) on the turbocharger.
  2. Install NEW turbocharger oil feed and oil return pipe gaskets (4, 5).
  3. Install the turbocharger (1).
  4. Install NEW turbocharger nuts (2) finger tighten.
  5. CAUTION:

    Refer to Fastener Caution .

  6. Install the turbocharger oil feed and return pipe bolts (6) at the engine block. Tighten the bolts to 10 N.m (89 lb in).
  7. Fig 2: PCV Hose Fitting Bolt
    GM2845924Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The PCV hose and fitting assembly connection is permanent. Reinstall these components as an assembly unless new components are being used.

  8. Install the PCV hose and fitting assembly (1) to the turbocharger. Install the PCV hose fitting assembly bolt (2) and tighten to 8 N.m (6 lb ft)
  9. Fig 3: Turbocharger Nut Tightening Sequence
    GM2769467Courtesy of GENERAL MOTORS COMPANY
  10. Tighten the turbocharger nuts in sequence:
    1. First pass 30 N.m (22 lb ft).
    2. Final pass plus 90 degrees.
  11. Fig 4: Turbocharger Coolant Feed Pipe Bolts
    GM2870481Courtesy of GENERAL MOTORS COMPANY
  12. Install the turbocharger coolant feed pipe bolts (1) and tighten to 10 N.m (89 lb in).
  13. Install the turbocharger coolant return pipe. Refer to Turbocharger Coolant Return Pipe Replacement .
  14. Install the catalytic converter. Refer to Catalytic Converter Replacement (LTG) .
  15. Fig 5: Turbocharger Heat Shield
    GM2869620Courtesy of GENERAL MOTORS COMPANY
  16. Install the turbocharger heat shield (2). Refer to Turbocharger Heat Shield Replacement .
  17. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (LTG) .
  18. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement (LTG) .