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It sounds like crap
If you were trying to ask "Is it bad when your car sounds like a boat during acceleration?" Than yes it is not very good, check your muffler and poor water in the engine block. Happy to help
depends on how bad the muffler is.. if it is all rotted out it will be very loud and rattle sounding and wont sound too good.. not very good for the vehicle
sounds like you have a bad valve guide and or valve seat allowing the two fluids to escape past the valve and out the muffler. also I would do a compression check to see if your rings are bad.
Your bad muffler might be part of the reason your check engine light comes on. Usually, your bad muffler causes something else to go wrong and that causes your check engine light to come on. Problems cascade.
as far as the humming noise and the grinding noise it sounds like your power steering pump is either out of fluid or gone bad completely. as for the muffler? ?MAYBE? the strain from the bad power steering pump is overworking the engine causing it to make noise? answer definetly a bad steering pump as for muffler, the sound can be transfred and magnified on a car, replace steering pump before bothering about the muffler sound may be gone
if its only on idle it sounds like a bad injector
No it is not a bad thing. The muffler was invented to muffle the sound. The muffler does not enhance anything. However, the muffler stops the engine being noisy and it is a LEGAL requirement to have one, if you take it off, the police will stop and fine you and your car may be crushed.
yes it will has to do with back pressure exhaust from the engine
sounds like you have a bad motor mount
Sounds like you might have a bad starter relay.
Sounds like alternator is going bad even though it still may still hold a charge