I have a 2002 Trailblazer that has recently started making a noise somewhere in the front end of the vehicle. The noise only occurs between 30 mph to 55 mph. It sounds like a "tinny" scraping noise. It is not in the brake system. Could it have anything to do with the front drive train? Recently moved up north from Florida, and started using 4-wheel drive. Noise began a few weeks later. Any possible problems that should be investigated?[sm=helpout.gif]

 

have you checked your cv shafts where they go into your hub or into the front diff? Ive seen where rocks have lodged themselves making a scraping noise. you might try to recreate the noise with the vehicle jacked up and get a good look at things. caution, you might have a limited slip so make sure both back tires are off the ground and at least one of the front. good luck id like to know what you come up with.