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Home >> Buick >> 2015 >> Verano Premium, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 2.4L (Lea)) >> Repair Instructions - On Vehicle >> Engine Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Drain the cooling system. Refer to Cooling System Draining and Filling (2.4L LEA) .
  4. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  5. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  6. Remove the front bumper fascia. Front Bumper Fascia Replacement .
  7. Fig 1: Intake Manifold Cover
    GM2571937Courtesy of GENERAL MOTORS COMPANY
  8. Remove the intake manifold cover (1). Refer to Intake Manifold Cover Replacement .
  9. Remove the air conditioning compressor and the condenser hose. Refer to Air Conditioning Compressor and Condenser Hose Replacement (2.4L LEA) .
  10. Fig 2: Fuel Feed Line
    GM2571938Courtesy of GENERAL MOTORS COMPANY
  11. Disconnect the fuel feed line (1) and reposition away from the engine. Refer to Plastic Collar Quick Connect Fitting Service .
  12. Fig 3: EVAP Hose, Brake Booster Vacuum Pipe & Transmission Vent Hose
    GM2571939Courtesy of GENERAL MOTORS COMPANY
  13. Disconnect the EVAP hose (1). Refer to Plastic Collar Quick Connect Fitting Service .
  14. Disconnect the power brake booster vacuum pipe (2). Refer to Power Brake Booster Vacuum Pipe Replacement (2.4L LEA - Engine Side)Power Brake Booster Vacuum Pipe Replacement (2.4L LEA - Booster Side) .
  15. Disconnect the transmission vent hose (3) from the coolant surge tank.
  16. Fig 4: Radiator Surge Tank Hose
    GM2571940Courtesy of GENERAL MOTORS COMPANY
  17. Remove the radiator surge tank hose (1, 2) lay on top of engine.
  18. Fig 5: Inlet Heater Core Hose
    GM2571941Courtesy of GENERAL MOTORS COMPANY
  19. Disconnect the inlet (1) heater core hoses. Refer to Heater Inlet Hose Replacement (2.4L LEA) .
  20. Fig 6: Outlet Heater Core Hose
    GM2571942Courtesy of GENERAL MOTORS COMPANY
  21. Disconnect the outlet (1) heater core hoses. Refer to Heater Outlet Hose Replacement (2.4L LEA) .
  22. Fig 7: Ground Strap & Bolt
    GM2452061Courtesy of GENERAL MOTORS COMPANY
  23. Remove the ground strap bolt (1) from the battery cable and reposition the strap (2) aside.
  24. Remove the battery tray. Refer to Battery Tray Replacement .
  25. Fig 8: Wiring Harnesses And Ground Nuts
    GM2027867Courtesy of GENERAL MOTORS COMPANY
  26. Remove the ground nuts (1) and put the wiring harness (2) aside.
  27. Disconnect the electrical connectors from the engine control module (ECM). Refer to Engine Control Module Replacement .
  28. Disconnect the wiring harness from the accessory wiring junction block.
  29. Fig 9: Junction Connector
    GM2452065Courtesy of GENERAL MOTORS COMPANY
  30. Disconnect the wiring harness from the junction connector (1).
  31. Place the ECM, transmission and the accessory wiring junction block wiring harnesses on the top of the engine assembly.
  32. Fig 10: Radiator Inlet Hose
    GM2571943Courtesy of GENERAL MOTORS COMPANY
  33. Remove the radiator inlet hose (1). Refer to Radiator Inlet Hose Replacement (2.4L LEA) .
  34. Fig 11: Radiator Outlet Hose
    GM2571944Courtesy of GENERAL MOTORS COMPANY
  35. Remove the radiator outlet hose (1). Refer to Radiator Outlet Hose Replacement (2.4L LEA) .
  36. Fig 12: View Of Transmission Range Selector Lever & Cable Connection
    GM2001179Courtesy of GENERAL MOTORS COMPANY
  37. Disconnect the transmission range selector lever cable terminal (1) from the transmission manual shift lever pin.
  38. Press the locking tabs inward in order to release the transmission range selector lever cable (2) from the cable bracket.
  39. Fig 13: Identifying Cooler Inlet & Outlet Hoses
    GM1998666Courtesy of GENERAL MOTORS COMPANY
  40. Remove the oil cooler inlet (1) and outlet (5) hoses from the retainer (2) on the control valve body cover.
  41. Remove the transmission fluid cooler inlet hose nut (3) from the transmission.
  42. Remove the transmission fluid cooler inlet hose (1) from the transmission.
  43. Remove the transmission fluid cooler outlet hose nut (4) from the transmission.
  44. Remove the transmission fluid cooler outlet hose (5) from the transmission.
  45. Plug and/or cap the hose and transmission to prevent contamination.
  46. Fig 14: Lower Steering Intermediate Shaft Bolt
    GM2452074Courtesy of GENERAL MOTORS COMPANY
  47. Remove and DISCARD the lower steering intermediate shaft bolt (1).
  48. Install the engine support fixture. Refer to Engine Support Fixture .
  49. Remove the starter motor. Refer to Starter Replacement (2.4L LEA) .
  50. Remove the air deflector.
  51. Fig 15: Torque Converter To Flywheel Bolts
    GM2571953Courtesy of GENERAL MOTORS COMPANY
  52. Mark the relationship of the flywheel to the torque converter for reassembly.
  53. Remove the torque converter to flywheel bolts (1).
  54. Fig 16: Lower Transmission Bolts
    GM2571952Courtesy of GENERAL MOTORS COMPANY
  55. Remove the lower oil pan to transmission lower bolts (1).
  56. Fig 17: View Of Brake Caliper And Brake Caliper Guide Pin Bolt
    GM2027317Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do Not disconnect the brake hoses from the calipers.

  57. Remove the front brake calipers (1) and caliper bolts (2) from the caliper brackets, and then suspend the calipers with mechanics wire to the body.
  58. Remove the exhaust system. Refer to Exhaust System Replacement (2.4L LEA) .
  59. Fig 18: Stabilizer Link Nut
    GM2028083Courtesy of GENERAL MOTORS COMPANY
  60. Remove and DISCARD the stabilizer link nut (1) from the strut assemblies. Refer to Stabilizer Shaft Link Replacement .
  61. Disconnect the right wheel drive shaft from the intermediate shaft.
  62. Fig 19: Front Steering Knuckle Bolts
    GM2571947Courtesy of GENERAL MOTORS COMPANY
  63. Disconnect the front steering knuckles bolts (1) from the strut assemblies. Refer to Steering Knuckle Replacement .
  64. Disconnect the electronic power steering connectors from the electronic power steering assembly. Refer to FEP Connectors (Steering Gear) .
  65. Fig 20: Automatic Transmission Mount Bracket Through Bolt
    GM2027404Courtesy of GENERAL MOTORS COMPANY
  66. Remove the rear transmission mount bracket to rear mount through bolt (1).
  67. Fig 21: Front Transmission Mount Through Bolt
    GM2027411Courtesy of GENERAL MOTORS COMPANY
  68. Remove the transmission front mount through bolt (1).
  69. Using suitable straps or chains, secure the front of vehicle to the hoist arms.
  70. NOTE:

    Use the engine support fixture to slightly raise the powertrain assembly to aid in the removal of the engine and transmission mount bolts.

  71. Use the engine support fixture to slightly raise the powertrain assembly to aid in the removal of the engine and transmission mount bolts.
  72. Fig 22: Right Side Engine Mount Bolts
    GM2571945Courtesy of GENERAL MOTORS COMPANY
  73. Mark the location of the bolts (1) before removing.
  74. Remove the right side engine mount bolts (1). Refer to Engine Mount Replacement .
  75. Fig 23: Transmission Mount & Bolts
    GM2571946Courtesy of GENERAL MOTORS COMPANY
  76. Mark the location of the bolts (1) before removing.
  77. Remove the transmission mount bolts (1), left side. Refer to Transmission Mount Replacement - Left Side .
  78. Using a suitable engine support table, lower the vehicle until the drivetrain and front suspension frame contacts the engine support table.
  79. Position blocks of wood below the oil pan and transmission to stabilize the powertrain on the support table.
  80. Using the engine support fixture, lower the powertrain down until it is resting on the engine support table.
  81. Remove the engine support fixture. Refer to Engine Support Fixture .
  82. Fig 24: Rear Frame Reinforcement & Bolts
    GM2571948Courtesy of GENERAL MOTORS COMPANY
  83. Remove and DISCARD the rear frame reinforcement bolts (1) and reinforcement.
  84. Fig 25: Rear Frame Reinforcement Bolts
    GM2571949Courtesy of GENERAL MOTORS COMPANY
  85. Remove the rear frame reinforcement bolts (1, 2).
  86. Fig 26: Front Frame Reinforcement Bolts
    GM2571950Courtesy of GENERAL MOTORS COMPANY
  87. Remove the front frame reinforcement bolts (1).
  88. Slowly and carefully raise the vehicle, ensure the engine, transmission, radiator assembly and drivetrain suspension frame are free from wiring, hoses and other engine compartment components.
  89. Disconnect engine coolant hoses as necessary.
  90. Disconnect electrical connectors as necessary.
  91. Fig 27: Lower Cylinder Head To Transmission Bolts
    GM2571954Courtesy of GENERAL MOTORS COMPANY
  92. Remove the lower cylinder head to transmission lower bolts (1, 2).
  93. Fig 28: Lower Engine Case To Transmission Bolts
    GM2571955Courtesy of GENERAL MOTORS COMPANY
  94. Remove the lower engine case to transmission lower bolts (1).
  95. Fig 29: Upper Transmission To Engine Bolts
    GM2571956Courtesy of GENERAL MOTORS COMPANY
  96. Remove the upper transmission to engine bolts (1) and separate the engine and transmission.
  97. Install the engine to the engine stand.
  98. Transfer parts as needed.