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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 10L80 (MHS MHU MQC) - Repair Instructions - On Vehicle (1 Of 2) >> Repair Instructions - On Vehicle >> Transmission Fluid Drain and Fill (L84/L87) >> Installation Procedure

Installation Procedure

  1. GM5569832Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Pump Seal (3) - Install NEW

  2. Automatic Transmission Fluid Filter (2) - Install
  3. CAUTION:

    Refer to Fastener Caution .

  4. Automatic Transmission Fluid Filter Bolt (1) - Install NEW and tighten [2x] - Fastener Specifications
  5. GM5569829Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Pan Gasket (3) - Install

  6. Automatic Transmission Fluid Pan (2) - Install
  7. Automatic Transmission Fluid Pan Bolt (1) - Install and tighten in sequence [16x] - Fastener Specifications
  8. GM5001113Courtesy of GENERAL MOTORS COMPANY

    Exhaust System Seal-Right Side (1) - Install NEW

  9. GM5001105Courtesy of GENERAL MOTORS COMPANY

    Exhaust System Seal-Left Side (1) - Install NEW

  10. Raise and support the exhaust system as necessary.
  11. GM5584486Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut- Right Side (1) - Install and tighten [3x] - Fastener Specifications

  12. GM5584496Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut- Left Side (1) - Install and tighten [3x] - Fastener Specifications

  13. GM5508826Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Heat Shield (2) - Install

  14. Exhaust Heat Shield Bolt (1) - Install and tighten - Fastener Specifications
  15. GM5508824Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Heat Shield (2) - Install

  16. Exhaust Heat Shield Bolt (1) - Install and tighten - Fastener Specifications
  17. GM5523023Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. Adhesives, Fluids, Lubricants, and Sealers

    Using a suitable tool, install and tighten the heated oxygen sensor - bank 2 sensor 2 (1). Fastener Specifications

  18. Electrical Connector@Heated Oxygen Sensor- Bank 2 Sensor 2 - Connect
  19. GM5568855Courtesy of GENERAL MOTORS COMPANY

    Using a suitable tool, install and tighten the heated oxygen sensor - bank 2 sensor 1 (1). Fastener Specifications

  20. Electrical Connector@Heated Oxygen Sensor- Bank 2 Sensor 1 - Connect
  21. GM5523087Courtesy of GENERAL MOTORS COMPANY

    Using a suitable tool, install and tighten the heated oxygen sensor - bank 1 sensor 2 (1). Fastener Specifications

  22. Electrical Connector@Heated Oxygen Sensor- Bank 1 Sensor 2 - Connect
  23. GM5525401Courtesy of GENERAL MOTORS COMPANY

    Using a suitable tool, install and tighten the heated oxygen sensor - bank 1 sensor 1 (1). Fastener Specifications

  24. Electrical Connector@Heated Oxygen Sensor- Bank 1 Sensor 1 - Connect
  25. Front Wheelhouse Liner- Left Side and Right Side - Install - Front Wheelhouse Liner Replacement
  26. Inspect the exhaust system for leaks.
  27. Remove the drain pan.
  28. Fill the transmission to the proper level with NEW transmission fluid. Transmission Fluid Level and Condition Check
  29. Remove the support and lower the vehicle.