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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 2.4L) >> Repair Instructions - On Vehicle >> Engine Replacement (LEA) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (High Side) .
  2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  3. Disconnect the fuel feed pipe quick connect fitting at the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
  4. Disconnect the evaporative emission (EVAP) line quick connect fitting from the EVAP purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service .
  5. Remove the fuel feed pipe clip from the fuel line bracket.
  6. Remove the transaxle shift cable clip from the fuel line bracket.
  7. Remove the battery tray. Refer to Battery Tray Replacement .
  8. Remove the vacuum brake booster hose from the intake manifold.
  9. Remove the coolant recovery inlet pipe clip from the fuel rail.
  10. Remove the coolant recovery inlet hose from the cylinder head.
  11. Remove the radiator inlet hose from the cylinder head.
  12. Remove the radiator outlet hose. Refer to Radiator Outlet Hose Replacement (LTG) .
    13. Fig 1: Inlet Hoses
    GM1891866Courtesy of GENERAL MOTORS COMPANY
  13. Remove the heater inlet hose (2) from the thermostat housing.
  14. Remove the coolant recovery reservoir/heater inlet hose (4) from the thermostat housing.
  15. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  16. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
  17. Disconnect the engine wiring harness electrical connector from the air conditioning (A/C) compressor.
    18. Fig 2: Compressor Bolts
    GM1811970Courtesy of GENERAL MOTORS COMPANY
  18. Unbolt the A/C compressor and reposition out of the way.
  19. Remove the positive battery cable from the starter motor.
  20. Disconnect the generator electrical connectors.
  21. Lower the vehicle.
    22. Fig 3: Transaxle Shift Cable And Range Select Lever
    GM1834362Courtesy of GENERAL MOTORS COMPANY
  22. Remove the transaxle shift cable from the range select lever.
  23. Release the shift control cable retaining clip and remove the cable from the shift control cable bracket.
    24. Fig 4: View Of Cooling Module Secured To Upper Body Structure
    GM857193Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The radiator/condenser/fan assembly will stay in the vehicle during engine removal.

  24. Using long tie straps, secure the radiator/condenser/fan assembly to the radiator support.
  25. Raise the vehicle.
  26. Remove the front wheels and tires. Refer to Tire and Wheel Removal and Installation .
  27. Remove the front wheelhouse panel.
  28. Drain the transaxle fluid.
  29. Remove the catalytic converter.
    30. Fig 5: View Of Intermediate Shaft To Steering Gear Pinch Bolt
    GM1829617Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Secure the steering wheel in the straight forward position before separating the intermediate shaft from the steering gear, or damage to the SIR coil will occur.

  30. Remove the intermediate to steering gear pinch bolt and disconnect the intermediate shaft from the steering gear. Discard the pinch bolt.
  31. Separate the tie rods from the steering knuckles.
  32. Remove the wheel drive shafts.
  33. Lower the vehicle.
    34. Fig 6: Engine Mount To Bracket Bolts
    GM1890869Courtesy of GENERAL MOTORS COMPANY
  34. Remove the engine mount to bracket bolts (1).
    35. Fig 7: Transaxle Mount To Transaxle Bolts
    GM1892101Courtesy of GENERAL MOTORS COMPANY
  35. Remove the transaxle mount to transaxle bolts.
  36. Raise the vehicle.
    37. Fig 8: Raising Powertrain Assembly Into Position
    GM952078Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    During the powertrain removal support the vehicle body by placing a jack at the rear of the vehicle.

  37. Position a engine support table under the powertrain assembly.
    38. NOTE:

    Blocks of wood can be used between the front of the frame and the oil pan to table in order to level the powertrain during the removal.

  38. With the table positioned, fully raise the table to contact the powertrain assembly.
  39. Remove the frame to body bolts. Discard the bolts.
    40. NOTE:

    When lowering the engine/transaxle assembly, verify all brake lines, shiftier cables and other components are free during removal.

  40. Lower the engine table and raise the body on the hoist until the engine/transaxle and frame are free from the vehicle.
  41. Disconnect the engine wiring harness electrical connectors as necessary.
    42. Fig 9: Identifying Starter Motor Bolts & Starter
    GM1814106Courtesy of GENERAL MOTORS COMPANY
  42. Remove the starter motor bolts and starter.
    43. Fig 10: Torque Converter To Flexplate Bolts
    GM1847524Courtesy of GENERAL MOTORS COMPANY
  43. Remove the torque converter to flexplate bolts (1).
  44. Install a suitable lifting device to the engine.
    45. Fig 11: Transaxle And Transaxle Mounting Bolts
    GM2273180Courtesy of GENERAL MOTORS COMPANY
  45. Remove the transaxle bolts (2) from the engine.
  46. Separate the engine from the transaxle (1).
  47. Install the engine to a suitable engine stand.
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