1. Disassemble the transaxle case. Refer to Transmission Case Disassemble in the M86/M94 Section of the Transmission Unit Repair Manual.
2. Check the following components for wear or damage.

•	The 4th speed constant-mesh gears

•	The 3rd/4th synchronizer

•	The output gear

Are any of the components worn or damaged?

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Go to Step 2

Go to Bearing Noise

Service, repair, or replace the components as necessary. Refer to the M86/M94 Section of the Transmission Unit Repair Manual.

Did the noise disappear?

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System OK

Go to Bearing Noise