My Car Is Making a Ticking Noise

Engine ticking is one of those sounds that makes you turn down the radio and listen harder. Some ticks are normal — some aren't.

A ticking noise from the engine can be perfectly normal or a sign of trouble. Fuel injectors tick — that's just how they work, and it's usually a faint, rapid tick at idle. Direct-injection engines are louder than port-injection designs. Hydraulic lifters tick when oil pressure isn't reaching them properly, often right after startup or when oil is low or overdue for a change. An exhaust manifold leak produces a ticking that's louder when cold and may quiet down as the metal expands with heat.

To tell the benign from the bad: injector tick is steady, light, and rhythmic. Lifter tick is usually louder, sometimes intermittent, and can come and go. Exhaust tick changes with temperature. A rod knock — the sound you don't want — is a deeper, heavier tick or knock that gets louder with RPM and doesn't go away. Checking oil level and condition is step one. If the tick appeared after an oil change, confirm the right viscosity was used. Wrong-weight oil is a surprisingly common cause of post-service lifter noise.

Our mobile mechanic service covers all of Jacksonville, FL, and engine tick is a call we get often. We'll come to your location, use a stethoscope to pinpoint the source, check your oil level and condition, and give you a real diagnosis — not a guess. If it's something simple, we fix it on the spot. Call (904) 788-7272.