Why does my car sound louder than usual?
A failing or dirty sensor can send incorrect data, resulting in too much or too little fuel going to the engine.
This can result in a rough running engine that is louder than normal.
Bad or Dirty Spark Plugs: Bad spark plugs can cause the vehicle to misfire which will make it run louder..
Why does my car sound loud when I press the gas?
Usually this type of noise in an indication of a exhaust leak or a vacuum leak due to a broken or disconnected vacuum line. If you also notice that your car is slow to accelerate or is running rough, then it is likely that one of these items is the root cause.
Why does my car sound like a race car when I accelerate?
If you hear an ear splitting squeal when you are accelerating, then your fan belt is probably slipping or worn. Your fan belt can become loose over time, which means that it won’t move at the same pace as the pulleys that operate it.
What does a bad transmission sound like?
Clunking, humming or whining sounds are signs of automatic transmission problems. Faulty manual transmissions will also give off loud machinelike sounds that seem to come out of nowhere. A clunking noise when you shift gears is a telltale transmission situation.