[BillNguyen]

I couple days ago I noticed when I cold started my car it has a rattle noise coming from the passenger front but when the rpm when down it goes away but it also happen when I’m accelerating it would rattle sometime between 1800-3000rpm. So far I’ve checked the downpipe to midpipe connection 2 of the bolt was a bit loose so I tightened those up than I check my mpe tip and tighten them up also I got under my car with a rubber hummer to knock along the exhaust but not thing seems to rattle I tapped the exhaust flap and no rattle. Is there something else I should check or is this 100% waste rattle. Also all of this seems to happen overnight so I’m not sure what happened.