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Posts Tagged: fretting corrosion in electrical contacts

Fretting corrosion in electrical contacts

What is Fretting Corrosion GM and other car makers have issued service bulletins discussing the effects of fretting corrosion in electrical systems. Fretting is caused by vibration and rubbing between two electrical contacts that produces a fine dust that spreads and conducts electrical signals between other conductors in the connector. That causes strange difficult to diagnose electrical problems. The electrical issues may be permanent or intermittent. If you run across strange electrical behavior, your fist step should be to open the electrical connectors and look for evidence of fretting corrosion. … Read More

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