Question about Chevrolet 3500
Rust under the front wheel speed sensors causes them to lift up sending a false speed reading to the brake controller. This has been a problem for quite some time. GM has a safety campaign recall for this problem. Call a dealer tell them about your problem and ask them to run your vin number to find out if it is covered by the recall. If its not covered you can fix it yourself.
Remove the front brake rotor, the sensor is behind it. Carefully twist the sensor while pulling upward on it. There will possibly be a rust ring above the o-ring on the sensor that will cause the sensor to break. After the sensor is removed cover the hole and remove the rust to the point of bare metal, clean the area, spray a non-corrosive primer on the area, wait for it to dry, use a heavy grease on the sensor and the mounting area. Reinstall the sensor and the brake parts.
Posted on Dec 12, 2009
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Posted on Jan 02, 2017
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