Special Tools
• J 39570 Chassis Ear
• J 41416 Ultrasonic Leak Detector
For equivalent regional tools, refer to Special Tools .
Note:
• This procedure is not used in Brazil.
• 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 chassis ear or J 41416 ultrasonic leak detector.
• 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.
© 2011 General Motors. All rights reserved.
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General
GENERAL INFORMATION
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Squeaks and Rattles
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CHEVROLET SONIC 2012 BODY REPAIR MANUAL