A muffler will deteriorate over time. The rattle is most likely the internal baffles breaking up and shaking around inside.
the muffler rattling? the muffler rattling? the muffler rattling?
The rattling you are asking about turned out on my 320 to be the catalytic converter breaking up internally.
mufflers have fan pins on the inside, one could have broken off and once you get to a certain speed it would rattle
Yes there could.
It may be a loose baffle inside the muffler or a tin heat shield on a exhaust pipe.
Yes there are.
Check your muffler pipes.
Rattling under acceleration is most often caused by your exhaust system. Check your heat shield for the catalytic converter or muffler. It may have come loose. Also, check the converter itself to see if some of the honeycomb inside has broken.
Rattling noise is probably just a loose muffler, muffler pipe, or a loose heat shield that is hitting chasey or something else.
Muffler Heat Sheild
Answer It could be that you need a new muffler. After so long the baffling inside the muffler can burn out. Also make sure that the muffler is not cracked or that exhaust is not leaking before it gets into the muffler. At the gasket between the muffler and the engine. Hope ths helps.
Your Mazda Protege might make rattling noises when parked because of a loose or damaged muffler or even body panels that are loose. It might also make a rattling noise because of a damaged motor mount.