GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 39570 Chassis Stethoscope
    • J 41416 Ultrasonic Leak Detector

       Important: Squeaks and rattles are caused by improperly controlled relative motion between vehicle components. There are four methods to prevent squeaks and rattles.

Use J 39570 or J 41416 to help in diagnosing.

    • Attach the component that squeaks or rattles regularly.
    • Separate the components that squeak or rattle to avoid contact.
    • Insulate the components that squeak or rattle.
    • Insulate low uniform friction surfaces to eliminate stick slip motion.