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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1765 (ENGINE MECHANICAL - 5.3L)REPAIR INSTRUCTIONSON-VEHICLE REPAIR INSTRUCTIONSENGINE REPLACEMENTREMOVAL PROCEDURE
2004 Oldsmobile Bravada AWD

Removal Procedure

2004 Oldsmobile Bravada AWDSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Isuzu Ascender, 2005 GMC Envoy XUV, 2005 GMC Envoy XL, 2005 GMC Envoy, and 2005 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Locating Components Connectors At Rear Of Engine
    GM898333Courtesy of GENERAL MOTORS CORP.
  1. Remove the hood. Refer to Hood Replacement
  2. Place fender covers over both fenders.
  3. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure
  4. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging
  5. Remove the radiator. Refer to Radiator Replacement (LM4)
  6. Remove the radiator support brace. Refer to Brace Replacement - Radiator Support Diagonal
  7. Remove the front differential drive axle, if equipped with 4-wheel drive (4WD). Refer to Differential Carrier Assembly Replacement (V8)
  8. Remove the wheel drive shafts. Refer to Wheel Drive Shaft Replacement
  9. Remove the intake manifold. Refer to Intake Manifold Replacement 
  10. Disconnect the following electrical connectors:
    • Oil pressure sensor (1)
    • Oxygen sensors (2, 3)
    • Camshaft position (CMP) sensor (4)
    11. Fig 2: View Of Rear A/C Lines
    GM871567Courtesy of GENERAL MOTORS CORP.
  11. Remove the air conditioning (A/C) compressor hose. Refer to Compressor Hose Assembly Replacement (LM4)
  12. Disconnect the rear auxiliary A/C compressor pipe fitting (7).
  13. Remove the rear auxiliary A/C compressor pipe nut and bolt (2, 5).
  14. Tie the pipe assembly out of the way.
    15. Fig 3: View Of ECT Sensor Electrical Connector And Ground
    GM898343Courtesy of GENERAL MOTORS CORP.
  15. Disconnect the engine coolant temperature (ECT) sensor (1).
  16. Remove the ground terminal bolt (2).
  17. Remove the retaining clips from the brackets.
    18. Fig 4: View Of A/C Compressor Pressure Switch Electrical Connector & Retaining Clip
    GM898468Courtesy of GENERAL MOTORS CORP.
  18. Disconnect the A/C pressure switch electrical connector (2).
  19. Remove the retaining clip (1) from the cylinder head.
  20. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle
    21. Fig 5: View Of Ground Terminal Bolts
    GM898338Courtesy of GENERAL MOTORS CORP.
  21. Remove the ground terminal bolts (2, 4).
  22. Remove the starter. Refer to Starter Motor Replacement (5.3L Engine)
    23. Fig 6: View Of Battery Cable Channel & Bolt
    GM899616Courtesy of GENERAL MOTORS CORP.
  23. Remove the battery cable channel bolt.
  24. Remove the battery cable channel from the oil pan.
    25. Fig 7: View Of A/C Compressor Electrical Connector
    GM898469Courtesy of GENERAL MOTORS CORP.
  25. Disconnect the A/C compressor electrical connector.
  26. Lower the vehicle.
  27. Gather all branches of the engine wiring harness and reposition the harness off to the side.
    28. Fig 8: View Of Generator Cable & Nut
    GM395686Courtesy of GENERAL MOTORS CORP.
  28. Remove the generator cable from the generator. Perform the following:
    1. Slide the boot down revealing the terminal stud.
    2. Remove the generator cable nut from the terminal stud.
    3. Remove the generator cable.
    29. Fig 9: View Of Generator Bracket & Bolts
    GM310813Courtesy of GENERAL MOTORS CORP.
  29. Remove the generator bracket bolts.
  30. Position the bracket with generator aside.
    31. Fig 10: View Of Inlet Hose
    GM901490Courtesy of GENERAL MOTORS CORP.
  31. Using J 38185  . See Special Tools .
  32. Remove the inlet hose from the water outlet.
    33. Fig 11: View Of Outlet Hose
    GM901491Courtesy of GENERAL MOTORS CORP.
  33. Using J 38185  . See Special Tools .
  34. Remove the outlet hose from the water outlet.
    35. Fig 12: View Of Auxiliary Heater Inlet & Outlet Hose/Pipe Assembly
    GM901493Courtesy of GENERAL MOTORS CORP.
  35. Disconnect the auxiliary heater inlet and outlet hose/pipe assembly from the heater water shutoff valve pipes.
    36. Fig 13: View Of Auxiliary Heater Inlet & Outlet Hoses/Pipes
    GM901492Courtesy of GENERAL MOTORS CORP.
  36. Using J 38185  . See Special Tools .
  37. Remove the auxiliary heater inlet and outlet hoses/pipes from the water pump.
    38. Fig 14: View Of J 41798
    GM309151Courtesy of GENERAL MOTORS CORP.
  38. Remove the ignition coils as required for the proper fit of J 41798  . See Special Tools .

    Refer to Ignition Coil(s) Replacement

    39. NOTE: Refer to Fastener Notice
  39. Install J 41798  . See Special Tools .

    Tighten: 

    • Tighten the M8 bolts to 25 N.m (18 lb ft).
    • Tighten the M10 bolts to 50 N.m (37 lb ft).

  40. Raise the vehicle.
  41. Remove the catalytic converter. Refer to Catalytic Converter Replacement (5.3L Engine)
    42. Fig 15: View Of Frame Engine Mount Bracket Bolt Locations
    GM876704Courtesy of GENERAL MOTORS CORP.
  42. Remove the 3 bracket bolts from both the right and the left sides of the frame engine mount.
    43. Fig 16: Flywheel-To-Torque Converter Bolts
    GM9096Courtesy of GENERAL MOTORS CORP.
  43. Remove the torque converter bolts.
    44. Fig 17: View Of Oil Level Indicator Tube Nut
    GM396797Courtesy of GENERAL MOTORS CORP.
  44. Remove the transmission oil level indicator tube nut.
    45. Fig 18: View Of Oil Level Indicator Tube & Seal
    GM396798Courtesy of GENERAL MOTORS CORP.
  45. Remove the transmission oil level indicator tube.
    46. Fig 19: View of Transmission Bolt & Stud (4L60-E)
    GM859004Courtesy of GENERAL MOTORS CORP.
  46. Remove the transmission bolt and stud on the right side.
    47. Fig 20: View Of Automatic Transmission Bolt/Studs (4.8L, 5.3L & 6.0L Engines)
    GM859003Courtesy of GENERAL MOTORS CORP.
  47. Remove the lower transmission bolt/studs.
  48. Lower the vehicle.
  49. Remove the 3 upper transmission bolts/studs.
  50. Install an engine hoist to J 41798  . See Special Tools .
  51. Install a floor jack under the transmission for support.
  52. Separate the engine from the transmission.
  53. Remove the engine.
  54. Install the engine to an engine stand.
  55. Install J 21366  . See Special Tools .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.