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Home >> Chevrolet >> 2021 >> Tahoe Z71 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 5.3L (L84) Or 6.2L (L87) - Repair Instructions (2 Of 11) >> Repair Instructions >> Engine Oil Level Indicator Switch Replacement (2WD with RC1) >> Installation Procedure

Installation Procedure

  1. Engine Oil Level Indicator Switch O-Ring Seal (3) - Install NEW
    GM5577605Courtesy of GENERAL MOTORS COMPANY
  2. Engine Oil Level Indicator Switch (2) - Install
    3. CAUTION:

    Refer to Fastener Caution .

  3. Engine Oil Level Sensor Bolt (1) - Install and tighten [2x] - Fastener Specifications
  4. Engine Oil Level Sensor Lead Clip (4) - Install
  5. Crankshaft Oil Deflector (2) - Install
    GM5577601Courtesy of GENERAL MOTORS COMPANY
  6. Crankshaft Oil Deflector Bolt (1) - Install and tighten [10x] - Fastener Specifications
  7. Apply a 3 mm (0.118 in) bead of RTV sealant on the oil pan (1). Adhesives, Fluids, Lubricants, and Sealers
    GM5570478Courtesy of GENERAL MOTORS COMPANY
  8. Apply a 5 mm (0.197 in) bead of RTV sealant on the oil pan (2). Adhesives, Fluids, Lubricants, and Sealers
  9. Oil Pan High Pressure Port Seal (2) - Install NEW [2x]
    GM5577840Courtesy of GENERAL MOTORS COMPANY
  10. Oil Pan Front Seal (3) - Install NEW
  11. Oil Pan (1) - Install
    GM5569924Courtesy of GENERAL MOTORS COMPANY
  12. Oil Pan Bolt (2, 3) - Install and hand tighten [16x]
  13. Oil Pan Bolt (2, 3) - Tighten in sequence [16x] - Fastener Specifications
  14. Electrical Connector (1) - Connect
    GM5589667Courtesy of GENERAL MOTORS COMPANY
  15. Engine Wiring Harness (3) - Install
    GM5644061Courtesy of GENERAL MOTORS COMPANY
  16. Engine Wiring Harness Retainer (2) - Install
  17. Engine Wiring Harness Ground Stud (1) - Install and tighten [2x] - Ground Repair
  18. Install and tighten the transmission fluid auxiliary cooler pipe bracket nut (1). Fastener Specifications
    GM5504569Courtesy of GENERAL MOTORS COMPANY
  19. Transmission Fluid Cooler Pipe Clip Bracket (2) @Oil Pan - Install
    GM5644122Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Components removed in graphic to better illustrate service parts.

  20. Transmission Fluid Cooler Pipe Clip Bolt (1) @Oil Pan - Install and tighten - Fastener Specifications
  21. Electrical Connector@Knock Sensor (4) - Connect
    GM5538525Courtesy of GENERAL MOTORS COMPANY
  22. Oil Filter (1) - Install and tighten - Fastener Specifications
    GM5604735Courtesy of GENERAL MOTORS COMPANY
  23. Transmission Bolt (1) - Install and tighten [2x] - Fastener Specifications
    GM5760502Courtesy of GENERAL MOTORS COMPANY
  24. Engine Oil Cooler Gasket (2) - Install NEW
    GM5582330Courtesy of GENERAL MOTORS COMPANY
  25. Engine Oil Cooler Hose (1) @Oil Pan - Install
  26. Engine Oil Cooler Adapter Bolt (1) - Install and tighten [2x] - Fastener Specifications
    GM5582326Courtesy of GENERAL MOTORS COMPANY
  27. Electrical Connector (1) @Engine Oil Pressure Sensor - Connect
    GM5582300Courtesy of GENERAL MOTORS COMPANY
  28. Wiring Harness Retainer (2) @Engine Oil Cooler Hose - Install
  29. Engine Oil Pressure Sensor Sleeve (1) - Install
    GM4997823Courtesy of GENERAL MOTORS COMPANY
  30. Engine Oil Cooler Hose Bracket Nut (1) - Install and tighten - Fastener Specifications
    GM4997286Courtesy of GENERAL MOTORS COMPANY
  31. Lubricate the oil level indicator seal (2) with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers
    GM5535978Courtesy of GENERAL MOTORS COMPANY
  32. Oil Level Indicator Seal (2) - Install NEW
  33. Oil Level Indicator Tube (1) @Oil Pan - Install
  34. Connect the wiring harness connectors (3) and retainers as needed.
    GM5535977Courtesy of GENERAL MOTORS COMPANY
  35. Engine Wiring Harness Retainer (1) @Oil Level Indicator Tube (2) - Connect
  36. Torque Converter Cover- Right Side (2) - Install
    GM5585543Courtesy of GENERAL MOTORS COMPANY
  37. Torque Converter Cover Bolt- Right Side (1) - Install and tighten - Fastener Specifications
  38. Torque Converter Cover- Left Side (2) - Install
    GM5585541Courtesy of GENERAL MOTORS COMPANY
  39. Torque Converter Cover Bolt- Left Side (1) - Install and tighten - Fastener Specifications
  40. Starter (1) - Install
    GM5569910Courtesy of GENERAL MOTORS COMPANY
  41. Electrical Connector (3) - Connect
    GM5569840Courtesy of GENERAL MOTORS COMPANY
  42. Protective Sleeve (4) - Install
  43. Starter Solenoid Cable (1) - Install
  44. Starter Solenoid Cable Nut (2) - Install and tighten - Fastener Specifications
  45. Starter Bolt (1) - Install and tighten [2x] - Fastener Specifications
    GM5569758Courtesy of GENERAL MOTORS COMPANY
  46. Starter Solenoid Cable (2) - Install
    GM5569769Courtesy of GENERAL MOTORS COMPANY
  47. Battery Negative Cable Ground Bolt (1) - Install and tighten - Fastener Specifications
  48. Starter Heat Shield (2) - Install
    GM5569721Courtesy of GENERAL MOTORS COMPANY
  49. Starter Heat Shield Bolt (1) - Install and tighten - Fastener Specifications
  50. Starter Heat Shield Bolt (1) - Install and tighten [2x] - Fastener Specifications
    GM5569719Courtesy of GENERAL MOTORS COMPANY
  51. Drivetrain and Front Suspension Frame Front Crossmember (1) - Install
    GM5651698Courtesy of GENERAL MOTORS COMPANY
  52. Drivetrain and Front Suspension Frame Reinforcement Bolt (2) - Install [4x]
    GM5651694Courtesy of GENERAL MOTORS COMPANY
  53. Drivetrain and Front Suspension Frame Reinforcement Nut (1) - Install and tighten [4x] - Fastener Specifications
  54. Install the heater coolant pump and heater water auxiliary pump bracket (2) as assembly.
    GM5620579Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  55. Heater Water Auxiliary Pump Bolt (1) - Install and tighten - Fastener Specifications
  56. Electrical Connector@Heater Coolant Pump (2) - Connect
    GM5591026Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Support the front stabilizer shaft.

  57. Front Stabilizer Shaft (3) - Install
  58. Front Stabilizer Shaft Clamp (2) - Install [2x]
  59. If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  60. Front Stabilizer Shaft Bolt (1) - Install and tighten [4x] - Fastener Specifications
  61. Engine Oil Cooler Hose Clip (1) - Secure
    GM5568873Courtesy of GENERAL MOTORS COMPANY
  62. Underbody Skid Shield (3) - Install
    GM5512332Courtesy of GENERAL MOTORS COMPANY
  63. Underbody Splash Shield Bolt (2) - Install and tighten [2x] - Fastener Specifications
  64. Underbody Splash Shield (1) - Install
    GM5512311Courtesy of GENERAL MOTORS COMPANY
  65. Underbody Splash Shield Bolt (1) - Install and tighten [4x]
    GM5512320Courtesy of GENERAL MOTORS COMPANY
  66. Underbody Splash Shield Bolt (2) - Install and tighten [4x] - Fastener Specifications
  67. Lower the vehicle.
  68. Oil Level Indicator Tube Bolt (1) - Install and tighten - Fastener Specifications
    GM5535975Courtesy of GENERAL MOTORS COMPANY
  69. Install the oil level indicator. (1)
    GM5535974Courtesy of GENERAL MOTORS COMPANY
  70. Fill the engine oil to the proper level with NEW engine oil.
  71. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection (9C1, 5W4) , or Battery Negative Cable Disconnection and Connection (KL9)
  72. Check for oil leaks.
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