Yes most definitely. If you're not sure what you're looking for, have a mechanic check it out.....
A hole in the muffler would cause a knocking sound in your muffler. A loose exhaust pipe can also cause a knocking noise.
The noise is the teeth on the flywheel grinding on the teeth of the starter. Check to see if the starter is loose, this is the most common cause of that noise.
Sounds like your problem is probably a loose heat-sheild or a loose exhaust. Have it checked.
A bad transmission. The sound is from metal grinding on eachother.
loose exhaust pipe or muffler is most common
Check if muffler is loose, check if rear brakes are worn out & grinding
An exhaust leak could do that.
lifters are beginning to go. timing chain (if vehicle is equiped) may be coming loose. and or exhaust pieces are loose.
A loud sound upon acceleration could be caused by issues such as a faulty exhaust system, loose or damaged components in the engine, or worn-out engine mounts. It is important to have the vehicle inspected by a mechanic to diagnose and address the underlying cause of the noise.
a dining sound could be lose nuts on the exhaust
Heat shields often corrode and become loose but they usually cause a tinny rattling sound. Eventually they fall off as witnessed by the dozens of them found along highways. Mechanics often remove them (with your permission) if they are loose, because they serve no purpose other than to protect the technician from a very hot catalytic converter that he/she knows not to touch anyway. A "knocking" sound, however, is more likely caused by a worn or broken exhaust hanger, allowing the exhaust system to bump the underside of the vehicle. Be sure the engine isn't causing the knocking sound, driving around a car with a knocking sound in the engine can cause MAJOR damage. Knocking from your undercarriage can also be caused by suspension components that have gone bad or are leaking fluid.
A loud sound coming from the rear end of a vehicle could be caused by issues with the exhaust system, such as a loose or damaged muffler or exhaust pipe. It could also be due to problems with the suspension, such as worn-out shocks or struts. It's best to have a mechanic inspect the vehicle to determine the exact cause of the noise.