first post here. My car , Chevy Malibu 2005 LS 3.5L V6, recently started to be much more loud when accelerating. It shake a lot too. But only when accelerating and especially at 1000RPM. When don't move its smooth. But after some times, I heard a small pitch sound, like birds or grasshopper. So I suspected it was my water pump, but the pitched sound seems to be every now and then. So suspect it could be the exhaust. Any idea?
I hope I can repair it myself, because I don't really trust mechanics honesty. I got the car to two different mechanics last year, one said everything was okay for general inspection, the other said I got something with my brake oil.