Transmission Output Shaft Bearing Noise Detected

What this code means

The TCM or vibration sensor has detected a signature consistent with output shaft bearing wear in the transmission.

Symptoms

• Whining noise proportional to vehicle speed
• Noise changes with load but not with gear
• Vibration felt through floor
• Noise present in all gears
• Transmission fluid may have metallic sheen

Common causes

• Output shaft bearing wear
• Insufficient lubrication
• Bearing preload incorrect
• High mileage wear
• Contaminated fluid causing bearing damage

Diagnostic steps

1. Listen for bearing noise at varying speeds
2. Check transmission fluid for metal particles
3. Perform vibration analysis
4. Road test in multiple gears to isolate source
5. Inspect transmission for external leaks

Repair notes

Transmission removal and bearing replacement required. Inspect output shaft for scoring. Replace fluid and filter.

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