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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1717 (Engine Mechanical - 3.6L (3 Of 6)) >> Repair Instructions - On Vehicle (2 Of 2) >> Engine Replacement (LY7) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Disconnect the engine control module (ECM) connector from the under-hood fuse block.
  3. Disconnect ground wire from frame, near battery box.
  4. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (LY7) .
  5. Release the clamp from the brake booster vacuum hose connection.
  6. Disconnect the brake booster vacuum hose from the intake manifold.
  7. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  8. Discharge the fuel system. Refer to Fuel Pressure Relief (with CH 48027-100) or Fuel Pressure Relief (w/o CH 48027-100) .
  9. Disconnect the evaporative emission (EVAP) hose/pipe from the EVAP canister purge solenoid valve. Refer to Plastic Collar Quick Connect Fitting Service .
  10. Disconnect the engine fuel hose/pipe from the chassis fuel hose/pipe. Refer to Metal Collar Quick Connect Fitting Service .
  11. Discharge the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging (With HP5) or Refrigerant Recovery and Recharging (Without HP5) .
  12. Remove the A/C compressor hose assembly from the compressor. Cap or plug the hoses and compressor to prevent contamination. Refer to Air Conditioning Compressor Hose Replacement (LY7) .
  13. Disconnect the transaxle shift control cable from the transaxle. Refer to Range Selector Lever Cable Replacement .
  14. Drain the engine coolant from the cooling system. Refer to Cooling System Draining and Filling (Static Fill Without HP5) or Cooling System Draining and Filling (GE 47716 Fill Without HP5) .
  15. Tie the radiator, A/C condenser, and fan module assembly to the upper radiator support to keep the assembly with the vehicle when the frame and drivetrain is removed.
  16. Disconnect the heater hoses from the engine. Refer to Heater Inlet Hose Replacement (LY7) .
  17. Remove the radiator inlet hose. Refer to Radiator Inlet Hose Replacement (LY7) .
  18. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  19. Remove the radiator outlet hose. Refer to Radiator Outlet Hose Replacement (LY7) .
    20. Fig 1: View Of Transaxle Oil Cooler Line Assembly
    GM945444Courtesy of GENERAL MOTORS CORP.
  20. Disconnect the transaxle oil cooler lines from the transaxle and remove the seals. Refer to Fluid Cooler Inlet Hose Replacement and Fluid Cooler Outlet Hose Replacement .
  21. Cap the transaxle oil cooler lines and plug the transaxle oil cooler line fittings to prevent loss of transmission fluid.
  22. Remove the catalytic converters and secure the rear half of the exhaust system to the vehicle underbody. Refer to Exhaust Manifold Replacement - Left Side (LY7 or LCS) and Exhaust Manifold Replacement - Right Side (LY7 or LCS) .
  23. Remove the front tires. Refer to Tire and Wheel Removal and Installation .
  24. Remove the right and left engine splash shields. Refer to Engine Splash Shield Replacement .
    25. Fig 2: Removing/Installing Steering Shaft To Intermediate Shaft
    GM927947Courtesy of GENERAL MOTORS CORP.
  25. Remove the steering intermediate shaft pinch bolt and discard the bolt.
  26. Disconnect the steering intermediate shaft from the steering gear.
    27. Fig 3: View Of Tie Rod End To Steering Knuckle
    GM854972Courtesy of GENERAL MOTORS CORP.
  27. Remove the right and left outer tie rod ends from the steering knuckles. Refer to Steering Linkage Outer Tie Rod Replacement .
    28. Fig 4: View Of Stabilizer Shaft & Link
    GM927949Courtesy of GENERAL MOTORS CORP.
  28. Remove the right and left stabilizer shaft links from the stabilizer shaft. Refer to Stabilizer Shaft Link Replacement .
    29. Fig 5: View Of Lower Ball Joint At Steering Knuckle
    GM1418666Courtesy of GENERAL MOTORS CORP.
  29. Remove the right and left lower ball joints from the steering knuckles. Refer to Lower Control Arm Replacement .
  30. On front wheel drive (FWD) models, place a drain pan under the transaxle then separate the right and left front wheel drive shafts from the transaxle. Refer to Front Wheel Drive Shaft Replacement .
  31. On all wheel drive (AWD) models, remove the rear wheel driveshaft. Refer to Rear Wheel Drive Shaft Replacement .
    32. Fig 6: Removing/Installing Block Of Wood Between Frame & Engine Oil Pan
    GM1403676Courtesy of GENERAL MOTORS CORP.
  32. On all models, place a block of wood (1) between the frame and the engine oil pan in order to support the engine once the bolts are removed from the right engine mount.
    33. Fig 7: View Of Right Engine Mount & Bolts
    GM1370510Courtesy of GENERAL MOTORS CORP.
  33. Lower the vehicle.
  34. Remove the bolts (2) that secure the right engine mount (1) to the engine (3).
    35. NOTE: Insure the vehicle body is secured to the hoist.
  35. Raise the vehicle.
  36. Place a universal frame support fixture or jackstands under the frame.
  37. Lower the vehicle until the frame contacts the frame support fixture or jackstands.
  38. Disconnect the wiring harness retaining clips near the right and left shock towers.
  39. Remove the drivetrain and front suspension frame reinforcement. Refer to Drivetrain and Front Suspension Frame Reinforcement Replacement (3.5L LZ4, 3.6L LY7 and 3.6L LSC) .
    40. Fig 8: Frame To Body Bolts
    GM933087Courtesy of GENERAL MOTORS CORP.
  40. Remove the frame-to-body bolts. Discard the bolts.
    41. NOTE: Inspect for areas of body to powertrain contact or entanglement of wires and hoses while separating the vehicle body and powertrain.
  41. Carefully raise the vehicle body up away from the powertrain.
    42. Fig 9: Identifying Oxygen Sensor, EVAP Purge Solenoid, Ignition Coils & Retainers
    GM1834939Courtesy of GENERAL MOTORS CORP.
  42. Disconnect the engine electrical wiring harness from the following components:
    • Oxygen sensor (1)
    • EVAP purge solenoid (2)
    • Ignition coils (3, 4, 10)
    • Ground leads (7, 11)
    • Remove wire harness from retainers (5, 6, 8, 9)
    43. Fig 10: View Of Camshaft Position Sensors & Actuators
    GM1835560Courtesy of GENERAL MOTORS CORP.
  43. Disconnect the left and right cylinder head engine electrical wiring harness from the following components:
    • Camshaft position sensors (1)
    • Camshaft position actuators (2)
    44. Fig 11: Identifying Generator, A/C Compressor, Oil Pressure Switch & Retainer Clips
    GM1834981Courtesy of GENERAL MOTORS CORP.
  44. Disconnect the engine electrical wiring harness from the following components:
    • Generator (1)
    • Retainer clips (2, 3, 4, 5, 6, 7, 9)
    • A/C compressor hose (8)
    • Oil pressure switch (10)
    • A/C compressor (8)
    45. Fig 12: Locating Battery Cable, Transmission Module & Retainer Clips
    GM1835311Courtesy of GENERAL MOTORS CORP.
  45. Disconnect the engine electrical wiring harness from the following components:
    • Battery cable (1)
    • Retainer clips (2, 3)
    • Transmission module (4)
    46. Fig 13: View Of Engine Coolant Heater
    GM1835015Courtesy of GENERAL MOTORS CORP.
  46. If equipped with an engine coolant heater, disconnect the coolant heater cord.
  47. Remove the throttle body assembly. Refer to Throttle Body Assembly Replacement .
    48. Fig 14: View Of Engine-To-Transaxle Brace & Bolts
    GM1371144Courtesy of GENERAL MOTORS CORP.
  48. Remove the engine-to-transaxle brace bolts (1, 2) and brace (3).
  49. Remove the starter motor. Refer to Starter Replacement (LY7) .
    50. Fig 15: View Of Torque Converter Bolts
    GM1371143Courtesy of GENERAL MOTORS CORP.
  50. Remove the torque converter bolts.
  51. Install the engine support adapters to the engine. Refer to Engine Support Fixture .
  52. Support the engine weight with an engine hoist.
    53. Fig 16: View Of Transaxle & Bolts
    GM1371142Courtesy of GENERAL MOTORS CORP.
  53. Remove the automatic transaxle bolts.
  54. Separate the automatic transaxle from the engine.
  55. Lift the engine away from the frame and the automatic transaxle.
  56. Secure the engine to an engine stand.
  57. Remove any additional engine components as necessary. Refer to appropriate component sections in manual if needed.
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