a "knocking" noise could be your lifters I found the instructions you gave us very leading In most cases, a little bit of noise from either your car or Uncle Barney -- like a mild ticking or clicking -- might be normal Grinding Noise when accelerating The sound was coming from the right-ish side in the front The sound was coming from the right. Loud squeaking or squealing noise while accelerating could mean there’s a problem with your engine belt. It could mean the belt’s loose or worn. Or it could mean that one of the belt’s pulleys is starting to fail. Loud rumbling noise when accelerating might suggest there’s a problem with your exhaust system. There might be a leak. Jul 28, 2022 · How Car Exhaust System Works. Watch on. If your engine sounds louder under acceleration, you could have a blowing exhaust. When an exhaust blows, the gases leak out somewhere before the tailpipe. It’s possible to find where your exhaust is blowing, provided you do so carefully. Park your car on flat ground..