Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hi. The most common cause for the AWD system to binding and bang, is from tires that are worn unevenly and do not have the same amount of tread left. The circumference of the tires needs to be within 1/2 inch of each other. Have you checked the tires lately?
Does this seem to happen more on tight turns like in a parking lot, or under 5mph?
Tire pressures and circumference can cause this. If those are ok, then most likely you need to have the clutches inside the transfer case replaced. They wear out.
Have you had the tires checked, or the clutches in the transfer case and rear end checked yet? Let me know and please rate my assistance using the 5 star rating method. Thank you.