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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Automatic Transmission - 8L90 (M5U) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Input And Output Speed Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Input And Output Speed Sensor Wiring Harness, Bolts And Retainers
    GM3817446Courtesy of GENERAL MOTORS COMPANY
  1. Position the automatic transmission input and output speed sensor wiring harness (3) to the transmission.
  2. Connect the input and output speed sensor wiring harness retainers (4).
  3. CAUTION:

    This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

    CAUTION:

    Refer to Fastener Caution .

  4. Install the NEW input and output speed sensor wiring harness bolts (1) and tighten the bolts to 4 N.m (35 lb in) plus 45 degrees.
  5. Fig 2: Electrical Connector
    GM3802143Courtesy of GENERAL MOTORS COMPANY
  6. Connect the electrical connector (1).
  7. Install the control valve body to the transmission. Refer to Control Valve Body Replacement .
  8. Reprogram the transmission. Refer to Solenoid Valve Characterization Reprogramming