Why does my car make a rattling noise when I Turn Off the engine?
Why does my car make a rattling noise when I Turn Off the engine? When the oil level becomes low it will allow the oil pump to scavenge air and mix it with the oil causing friction between moving parts which can produce a rattling noise. Shut the engine off and then locate the oil level dip stick which is usually designated by a yellow handle. Why is my car idling at high RPM? One very common cause of idling rough is a problem with a vacuum hose in the vehicle. The hose could be damaged, loose, or worn out,...