the screeming kids in the back!!!..wouldn't have it any other way:)....this is the dumbest one I've seen yet...is there a problem or do you just want to know what makes noise when an engine is running?
that's just the sound of the steel bits cooling down
check the U joints in the drive shaft
Maybe that thumping noise is the sound of another car smashing into the rear of your car.
There could be a number of causes. If the car is making the sound whilst stationary it could be a slipping fanbelt, or could be a problem with bearings. Water pump bearings are a common cause of such noise. If the noise is occurring only whilst travelling. It could be wheel bearings or rubbing brakes.
There are a number of reasons why your car may be making a whirring sound when accelerating. You may have a lose part for example.
Car speakers might make a weird sound as the car accelerates if the radio is equipped with an automatic sound adjuster. Some newer car radios have this feature so that the radio volume does not have to be adjusted when a window is opened or a blower fan is running.
if your car has air con on it while the engine is running it will be the aircon pump switching on and off hope this helps you out nate
the pullee to any belt could be bent
The engine crackle sound in a car is typically caused by unburned fuel igniting in the exhaust system. This can happen when the engine is running rich or when there is a misfire in the combustion process.
You may have a power steering problem.
Coolant leak
If your car is making a funny noise it is best to go to a mechanic. Mechanics have taken schooling to know what things sound right and what things do not sound OK.