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Home >> Chevrolet >> 2023 >> Camaro ZL1, 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 25 (Automatic Transmission - 8L45 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Torque Converter Diagnosis >> Torque Converter Bearing

Torque Converter Bearing

WARNING: This page is about a different variant/trim than selected.

Torque converter bearing noise is evident only in DRIVE or REVERSE. When the vehicle is stopped, bearing noise will increase/decrease with engine speed change. Bearing noise will stop when the vehicle is moving or with torque converter clutch applied due to reduced slip speed across the bearings.

NOTE:

Pump whine noise is noticeable in all gear ranges and will vary with line pressure.

Perform stall test to verify that noise is generated from the torque converter:

  1. Place your foot on the brake.
  2. Put the gear selector in DRIVE.
    3. CAUTION:

    You may damage the transmission if you depress the accelerator for more than 6 seconds.

  3. Depress the accelerator to approximately 1, 200 RPM for no more than 6 seconds. A torque converter noise will increase with this increased load and speed.
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