Whining Noise when RPM's go up on 2007 Chevrolet Trailblazer

My truck makes a whinning siund when the RPM's go up. It has been suggested that the power steering fluid may be low...? I've just reache dthe 1000,000 mile mark and did have the oil changed and fluids derviced last week. They said the other fluids were fine, but they also did not reccommend any of the other servicing that your site reccomends for specific mileage marks. Ideas? Thank you, Tammy Davis

by in Paso Robles, CA on October 06, 2009
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2 answers
ANSWER by , October 06, 2009
Stop by your local Napa and ask the counterman if he could listen to your engine as its tough to diagnose sounds over the internet Hope this helps NAPA AUTO PARTS Parts & Service Inc 2901 Riverside Ave Paso Robles, CA 93446
ANSWER by , March 31, 2011
it might be your idler pully mine did that and i put a new one on and that fixed the problem