Posted on 8/28/2026
A ticking sound from under the hood can be easy to overlook when the engine still starts, accelerates, and drives normally. You may hear it most clearly while standing next to the car, sitting at a drive-through, or pulling into the garage with the window down. Sometimes the sound disappears as soon as engine speed changes. Useful clues include when the ticking happens, how fast it is, and where it seems to come from. A light, steady clicking from a fuel injector is very different from a sharp mechanical tick that gets louder as the engine warms up. At our shop, we listen to the character of the noise before assuming an internal engine part is failing. Low Engine Oil Can Make the Top of the Engine Noisy Engine oil creates a protective film between moving metal parts and supplies hydraulic components inside many modern engines. If the oil level gets too low, parts in the valvetrain may not receive the lubrication or pressure they need. You might hear ticking from th ... read more