TSB : Diagnostic Information and Procedures: Diagnosis

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IMPORTANT: Squeaks and rattles are caused by improperly controlled relative motion between vehicle components. There are 4 ways to prevent squeaks and rattles. To aid in diagnosing, use J 39570 or J 41416 . Attach the component that squeaks or rattles securely. Separate the components that squeak or rattle to prevent contact. Insulate the components that squeak or rattle. Insulate low uniform friction surfaces to eliminate stickslip motion.