08 trailblazer sounds like a semi
#1
08 trailblazer sounds like a semi
I have a 4.2L trailblazer with 160,000 miles. When I get to 35mph and go faster I hear a sound that sounds like a semi. It's coming from in front of me if I was driving. I replaced the tensioner and pulley and a idler pulley. The belt looks good. I don't notice the noise when I rev it up in neutral or when I raised it up in the air which was like Ferris Beuller day off and prob not safe. Any ideas?