Automotive Technology/Diagnostics

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Listen to driver concern and road test the vehicle, every time.

Vibration, Harshness, and Noise[edit]

Always begin at the tires look for uneven wear.

Transmission Vibration and Noise[edit]

Vibration[edit]

Transmission and torque converter are not usual culprits for vibration. Check brakes , bearings, joints first.

When it is the culprit, usually it's an unbalanced/poorly mounted torque converter or faulty output shaft.

Noise[edit]

Should be directly connected to speed and conditions

Any condition with engine running points to the oil pump.

Noises based in a single gears relate to a band or clutch problem.