My 2009 vibe 2.4L is making this weird noise while moving and revving above 2000rpm. If I release the gas, the sound goes away. It doesn't make this noise when stationary.
Does any one have any clue what's causing it? My mechanic said he couldn't find anything wrong. He had replaced the Exhaust Pipe Flange Gasket for fixing a leak after which I started noticing this sound.
It has a hesitation in uphill and heavy acceleration. But that has been there before this sound.
I did run through a bottle of liquimoly catalytic cleaner to see if that helps, but apparently it didn't.
https://youtube.com/shorts/GKtJdrjsj0c? ... wf54ZqO8RW