Engine Noise and Vibration Diagnosis

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Engine Noise and Vibration Diagnosis

Meets NATEF Task: (A1-A-6) Diagnose engine noises and vibration; determine necessary action (P-2)

Name ______Date ______Time on Task ______

Make/Model/Year ______VIN ______Evaluation: 4 3 2 1

_____ 1. When is the engine noise or vibration detected? Check all that apply.

____ At engine start (warm engine)

____ At engine start (cold engine)

____ Idle (cold)

____ Idle (hot)

____ During acceleration

____ Under heavy load

____ Under light load

____ During deceleration

____ Other (describe) ______

_____ 2. Describe the noise or vibration. Check all that apply.

____ Clicking sound (like a ball-point pen)

____ Clacking noise (like tapping on metal)

____ Rattle (like a baby rattle)

____ Clatter (like rolling marbles)

____ Whine (like an electric motor running)

____ Clunk (like a door closing)

____ Other (describe) ______

_____ 3. Check service information regarding the noise and the associated tests and procedures

that should be followed. ______

______

_____ 4. What is the necessary action? ______

______