I've been trying to troubleshoot a weird sound coming from the engine. It happens whether I'm moving or parked. The best way to describe it is like a cat getting run over inside the engine (yes I looked for cats or any other animal). It happens in idle or if I let off the throttle, this sound appears.
I thought it was the dreaded turbo death whine, but I'm hitting my target boost just fine. Then I checked around by ear, I changed the a/c idler pulley, it fixed the problem of the squealing pulley but the cat getting dragged sound is still there. After changing out the pulley, the sound is audible around the a/c compressor, alternator, and throttle body. Also I changed out the alternator as well.
Any other ideas?
I thought it was the dreaded turbo death whine, but I'm hitting my target boost just fine. Then I checked around by ear, I changed the a/c idler pulley, it fixed the problem of the squealing pulley but the cat getting dragged sound is still there. After changing out the pulley, the sound is audible around the a/c compressor, alternator, and throttle body. Also I changed out the alternator as well.
Any other ideas?