There's many ways to make car make noise when it is turned off I am only going to explain one because I have to write another response about performing proper change of headlight fluid. Depending on how much noise do you want to make there are several options. One easy one is to puncture your tire with a knifeor a nail. The noise will be pretty loud, but short when you use a knife and quiet but longer when you use a nail. The good thing is you can repeat the process three more times, or four if you want to puncture your spare too.
Probably answered by this service bulletin: TT0404-004 APR 04 Body - Whistle from Engine Area
Pipes make noise when water is turned off due to a phenomenon called water hammer. This occurs when the flow of water is suddenly stopped, causing a pressure wave to travel through the pipes and create vibrations that result in noise.
Possible vacuum leak
because of you
The frist thing I would check would be the engine mounts.
Have you checked the pads to make sure they are still ok? my first car made a horrible noise when i used the brakes and it turned out the pads were bald so it was metal on metal. Only other thing i can think off is that the wheel bearings on their last legs?
GASOLINE ENGINE OR DIESEL?
The "whump whump" noise you hear from your car after it's turned off could be due to several factors, often related to the cooling system or electrical components. It may be the sound of the cooling fans winding down or the fuel system depressurizing. Additionally, some vehicles may have residual pressure in the fuel system that causes a rhythmic sound as it equalizes. If the noise persists or is accompanied by other symptoms, it might be worth consulting a mechanic.
no it will not! timming off will or high idle will.
The ticking noise is the metal cooling.
First, you need to find where the bubbly noise is coming from. More than likely, it's from your radiator overflow canister and means you have an overheating problem.
Assuming the question was meant to be "Can you safelyleave things plugged into the cigarette lighter of a car if they're turned off?" - the answer is yes.