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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 (4WD with RC1 without F47) >> 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. Front Axle (1) - Install
    GM5589733Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The front axle may have to be maneuvered to install it into the vehicle.

  52. Front Axle Vent Hose - Connect
  53. Front Differential Carrier Bolt (1) - Install and tighten - Fastener Specifications
    GM5589730Courtesy of GENERAL MOTORS COMPANY
  54. Front Differential Carrier Bolt (2) - Install
    GM5589729Courtesy of GENERAL MOTORS COMPANY
  55. Front Differential Carrier Bracket Nut (1) - Install and tighten - Fastener Specifications
  56. Drivetrain and Front Suspension Frame Front Crossmember (1) - Install
    GM5568922Courtesy of GENERAL MOTORS COMPANY
  57. Drivetrain and Front Suspension Frame Reinforcement Bolt (2) - Install [4x]
    GM5568896Courtesy of GENERAL MOTORS COMPANY
  58. Using the EN-45059-A  Angle Meter, install and tighten the 4 drivetrain and front suspension frame reinforcement nuts (1). Fastener Specifications
  59. Front Differential Carrier Bolt (2) - Install NEW
    GM5568832Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque-to-Yield Fastener Caution

  60. Front Differential Carrier Nut (1) - Install
  61. Using the EN-45059-A  Angle Meter, tighten the front differential carrier nut (1). Fastener Specifications
  62. 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.

  63. Heater Water Auxiliary Pump Bolt (1) - Install and tighten - Fastener Specifications
  64. Electrical Connector@Heater Coolant Pump (2) - Connect
  65. Connect the front drive axle actuator electrical connector (1).
    GM5589726Courtesy of GENERAL MOTORS COMPANY
  66. Install the harness and secure the two harness retainers (2).
  67. 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.
    GM5043426Courtesy of GENERAL MOTORS COMPANY
  68. Front Axle Propeller Shaft (1) - Install
  69. Align the reference marks made between the front axle propeller shaft (1) and the front differential drive pinion gear yoke.
  70. Front Axle Propeller Shaft Washer (3) - Install [3x]
  71. Install the 6 front axle propeller shaft bolts (2) and tighten in a crisscross pattern. Fastener Specifications
    GM5591026Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Support the front stabilizer shaft.

  72. Front Stabilizer Shaft (3) - Install
  73. Front Stabilizer Shaft Clamp (2) - Install [2x]
  74. 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.
  75. Front Stabilizer Shaft Bolt (1) - Install and tighten [4x] - Fastener Specifications
  76. Apply anti-corrosion wax to the frame shock tower. Anti-Corrosion Treatment and Repair
    GM5002019Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Prior to installing the front shock absorber, you MUST apply anti-corrosion wax to the frame shock tower.

  77. Front Shock Absorber (1) - Install
  78. Front Shock Absorber Bolt (1) - Install and tighten [2x] - Fastener Specifications
    GM5575833Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Using a jack stand support the lower control arm to prevent over-articulation of the front lower control arm ball joint.

  79. Front Shock Absorber Nut (1) - Install and tighten [3x] - Fastener Specifications
    GM5568487Courtesy of GENERAL MOTORS COMPANY
    GM5568546Courtesy of GENERAL MOTORS COMPANY
  80. Front Wheelhouse Liner- Left Side - Install [2x] - Front Wheelhouse Liner Replacement
  81. Remove any buildup from the front differential carrier output shaft lead in chamfer (1) using an abrasive pad and wipe clean with a shop cloth.
    GM5121838Courtesy of GENERAL MOTORS COMPANY
  82. Front Wheel Drive Shaft Seal (2) - Install NEW
    GM5595902Courtesy of GENERAL MOTORS COMPANY
  83. Front Wheel Drive Shaft Retaining Ring (1) - Install NEW
  84. Apply a thin coating of grease to the splines of the front wheel drive half shaft and front differential carrier output shaft. Adhesives, Fluids, Lubricants, and Sealers
  85. Install the front wheel drive half shaft (1) into the wheel hub.
    GM5588259Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  86. Install the front wheel drive half shaft (1) into the front axle.
  87. Ensure that the left front wheel drive half shaft (1) is fully seated in front differential carrier by pulling on the inner joint.
  88. Support the steering knuckle with a suitable jack stand.
  89. Front Upper Control Arm Ball Stud Nut (1) - Install and tighten - Fastener Specifications
    GM5604913Courtesy of GENERAL MOTORS COMPANY
  90. Remove jack stand.
  91. Front Stabilizer Shaft Link@Front Lower Control Arm - Install
    GM5633908Courtesy of GENERAL MOTORS COMPANY
  92. Front Stabilizer Shaft Link Nut (1) - Install and tighten - Fastener Specifications
  93. Steering Linkage Outer Tie Rod - Install
    GM5588267Courtesy of GENERAL MOTORS COMPANY
  94. Steering Linkage Outer Tie Rod Nut (1) - Install and tighten - Fastener Specifications
  95. Install the front wheel speed sensor wiring harness bracket (2).
    GM5582402Courtesy of GENERAL MOTORS COMPANY
  96. Front Wheel Speed Sensor Bracket Bolt (1) - Install and tighten - Fastener Specifications
  97. Front Wheel Speed Sensor (2) - Install
    GM5582579Courtesy of GENERAL MOTORS COMPANY
  98. Front Wheel Speed Sensor Bolt (1) - Install and tighten - Fastener Specifications
  99. Front Wheel Speed Sensor Bracket (4) - Install
  100. Front Wheel Speed Sensor Bracket Bolt (3) - Install and tighten - Fastener Specifications
  101. 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.
    GM5518506Courtesy of GENERAL MOTORS COMPANY
  102. Front Brake Caliper (1) - Install
  103. Front Brake Caliper Bolt (2) - Install and tighten [2x] - Fastener Specifications
  104. Front Brake Hose Bracket Bolt (1) - Install and tighten - Fastener Specifications
    GM5527943Courtesy of GENERAL MOTORS COMPANY
  105. Front Disc Brake Pad Wear Sensor (1) @Front Brake Caliper - Install
    GM5517176Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Only the left front wheel is equipped with the front disc brake pad wear sensor.

  106. Remove any buildup from the front differential carrier output shaft lead in chamfer (1) using an abrasive pad and wipe clean with a shop cloth.
    GM5121838Courtesy of GENERAL MOTORS COMPANY
  107. Front Wheel Drive Shaft Seal (2) - Install NEW
    GM5595902Courtesy of GENERAL MOTORS COMPANY
  108. Front Wheel Drive Shaft Retaining Ring (1) - Install NEW
  109. Apply a thin coating of grease to the splines of the front wheel drive half shaft and front differential carrier output shaft. Adhesives, Fluids, Lubricants, and Sealers
  110. Install the front wheel drive half shaft (1) into the wheel hub.
    GM5591240Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  111. Install the front wheel drive half shaft (1) into the front axle.
  112. Ensure that the right front wheel drive half shaft (1) is fully seated in front differential carrier by pulling on the inner joint.
  113. Support the steering knuckle with a suitable jack stand.
  114. Front Upper Control Arm Ball Stud Nut (1) - Install and tighten - Fastener Specifications
    GM5591248Courtesy of GENERAL MOTORS COMPANY
  115. Remove jack stand.
  116. Front Stabilizer Shaft Link@Lower Control Arm - Install
    GM5633900Courtesy of GENERAL MOTORS COMPANY
  117. Front Stabilizer Shaft Link Nut (1) - Install and tighten - Fastener Specifications
  118. Steering Linkage Outer Tie Rod - Install
    GM5591251Courtesy of GENERAL MOTORS COMPANY
  119. Steering Linkage Outer Tie Rod Nut (1) - Install and tighten - Fastener Specifications
  120. Install the front wheel speed sensor wiring harness bracket (2).
    GM5591255Courtesy of GENERAL MOTORS COMPANY
  121. Front Wheel Speed Sensor Bracket Bolt (1) - Install and tighten - Fastener Specifications
  122. Front Wheel Speed Sensor (2) - Install
    GM5591242Courtesy of GENERAL MOTORS COMPANY
  123. Front Wheel Speed Sensor Bolt (1) - Install and tighten - Fastener Specifications
  124. Front Wheel Speed Sensor Bracket (4) - Install
  125. Front Wheel Speed Sensor Bracket Bolt (3) - Install and tighten - Fastener Specifications
  126. 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:
    GM5591236Courtesy of GENERAL MOTORS COMPANY
    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.
  127. Front Brake Caliper (1) - Install
  128. Front Brake Caliper Bolt (2) - Install and tighten [2x] - Fastener Specifications
  129. Front Brake Hose Bracket Bolt (1) - Install and tighten - Fastener Specifications
    GM5591237Courtesy of GENERAL MOTORS COMPANY
  130. Have an assistant apply the brakes.
  131. Front Wheel Drive Shaft Nut (1) - Install NEW and tighten - Fastener Specifications
    GM5591238Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque-to-Yield Fastener Caution

  132. Front Wheel Drive Shaft Nut (1) - Install NEW and tighten - Fastener Specifications
    GM5580467Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque-to-Yield Fastener Caution

  133. Front Differential Carrier Oil Filler Plug (1) - Remove
    GM5535970Courtesy of GENERAL MOTORS COMPANY
    1. Inspect the gear lubricant level, it should be 16-22 mm (0.6-0.9 in) below the plug opening.
    2. If the level is low, add gear lubricant until the level is 16-22 mm (0.6-0.9 in) below the plug opening. Use the appropriate axle lubricant: Adhesives, Fluids, Lubricants, and Sealers
    3. Front Differential Carrier Oil Filler Plug (1) - Install and tighten - Fastener Specifications
  134. Engine Oil Cooler Hose Clip (1) - Secure
    GM5568873Courtesy of GENERAL MOTORS COMPANY
  135. Underbody Skid Shield (3) - Install
    GM5512332Courtesy of GENERAL MOTORS COMPANY
  136. Underbody Splash Shield Bolt (2) - Install and tighten [2x] - Fastener Specifications
  137. Underbody Splash Shield (1) - Install
    GM5512311Courtesy of GENERAL MOTORS COMPANY
  138. Underbody Splash Shield Bolt (1) - Install and tighten [4x]
    GM5512320Courtesy of GENERAL MOTORS COMPANY
  139. Underbody Splash Shield Bolt (2) - Install and tighten [4x] - Fastener Specifications
  140. Install both front tire and wheel assemblies. Tire and Wheel Removal and Installation (Steel Wheel) , or Tire and Wheel Removal and Installation (Aluminum Wheel)
  141. Lower the vehicle.
  142. Oil Level Indicator Tube Bolt (1) - Install and tighten - Fastener Specifications
    GM5535975Courtesy of GENERAL MOTORS COMPANY
  143. Install the oil level indicator. (1)
    GM5535974Courtesy of GENERAL MOTORS COMPANY
  144. Fill the engine oil to the proper level with NEW engine oil.
  145. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection (9C1, 5W4) , or Battery Negative Cable Disconnection and Connection (KL9)
  146. Check for oil leaks.
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