Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
The dealer technician needs to drive the vehicle with the Tech 2 connected and recording abs wheel speed data. After the fault occurs, they need to load it to TIS2WEB and view the data in graph form to see which sensor is dropping out.Once that is determined, you will know which hub assembly to replace.
This bulletin is being revised to change part number information and update the model years. Please discard Corporate Bulletin Number 03-05-25-004 (Section 05 -- Brakes).
Some customers may comment that the ABS and/or traction control system lamp is illuminated. Also, the AWD disabled message may be displayed. Upon investigation, the technician may find several DTCs set.
When normal diagnosis leads to the wheel speed sensor as the suspect component, replace the front wheel bearing and hub assembly, P/N 89047684. Refer to the Wheel Bearing/Hub Replacement procedure in the Front Suspension sub-section of the Service Manual. This new part has 6 mm (0.236 in) added to the harness to prevent any stress to the wiring.
Hub Kit-Front Wheel
Denny. This is an answer I have not heard before. Good job. Follow up question for you: Is it safe to say that the issue is MOST LIKELY a wheel hub assembly and therefore MOST LIKELY NOT a:
These are a possibility:
You should be able to do a quick visual inspection to rule out any of the above conditions.