Water pump failed at 55,000 miles.
Fan clutch failing at 56,000 miles.
I have a 2002 Trailblazer with 56,000 miles on it. Had the water pump replaced a couple of months ago. Today, I called the dealership about the "jet engine" sound and they said the fan clutch is bad and will cost $650 to repair it. I will write an email to GM and include the link to this website so they can see the future business they are losing. I can't imagine why they would not recall these vehicles for this problem and risk losing $30K from each of us when we buy our next vehicle. We'll see. Japanese for me too (unless GM stands behind this)!
I am having the same trouble and the 4wd is gone. I wish I had keep my payed for ford that I did nothing, but put gas in and keep the oil changed. GM got me this time, but never agine.
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