Step 1- Ask yourself these questions:
- Where is the source of the sound?
- What is happening when you hear the noise? Ex: sitting still, moving, turning, braking, accelerating.
- When did the noise occur?
- What were the weather conditions when the sound happened?
Squeal — A rubbery squeal, especially one that is intermittent but growing worse over time, usually means a loose or worn serpentine belt, but it could also indicate a problem with a more expensive accessory component like the car’s air conditioning compressor, power steering pump or water pump.
Growl — Also could be a whine that is audible at all times, even at idle. This could mean one of the car’s accessories is failing. A groaning when you turn the car could also mean the power steering pump needs to be checked for proper fluid level or fluid condition.
Clatter — A metallic clatter coming from inside the engine could mean the engine’s valves are loose, or it could indicate a low oil level or the need for an oil change.
Hiss — Can also be a whistle. Hearing this under the car’s hood usually means a leak in a vacuum hose. Alternatively, a high-pitched whistle coming from the area near the serpentine belt could indicate an alternator that is being stressed.
Bubbling — A bubbling or gurgling sound means air is trapped inside one of the vehicle’s fluids, most commonly the antifreeze/coolant. You may also hear this sound from inside the vehicle, as the same liquid circulates through the car’s heater core to provide heat.
Flapping — This could mean the serpentine belt is coming apart. Have it checked immediately.
Clicking — A clicking sound in the engine could indicate valves that are slightly loose from wear, an issue that, while noisy, is not particularly worrisome or indicative of broader mechanical problems. Many older engines exhibit this noise, which can sometimes be “cured” by installing specially formulated high-mileage motor oil or even synthetic motor oil.
Clunk — If you hear this when the car shifts gears, it could indicate transmission problems. Alternatively, if you hear a clunk when you put the transmission in gear, it could indicate worn U-joints.
Rattle — A rattling sound coming from beneath the car usually indicates loose exhaust components. It can also indicate a failed catalytic converter.
Whine — A constant whine when the car is in motion could indicate worn gears in the driveline, usually in the differential. It could also mean the differential fluid needs to be replaced.
Ticking — That ticking noise you hear whenever you turn the car off? It’s just the exhaust system cooling off. For once, nothing to worry about!
Knocking — This can also be a clicking or groaning. If you hear it from the tires or suspension when you’re at speed (say, above 40 miles per hour or 65 kilometers per hour), it could mean a worn constant velocity (CV) joint. If you hear it at low speeds, especially when you’re turning, it could mean a wheel bearing about to fail.
Squeak — A squeak coming from the suspension whenever you go over a bump usually means the rubber bushings that dampen vibration in the suspension system are worn. Can also mean the shocks or struts are in need of a closer inspection.
Clicking — If you hear a clicking sound that changes frequencies as you change speeds, chances are you have some foreign object either stuck in a tire or lodged between a wheel and brake or suspension component.
Howling — A tire that “howls” at high speed likely indicates an alignment problem. Alternatively, it could mean a worn shock or strut is allowing the tire to move slightly. Can also be accompanied by a vibration in the steering wheel.
Squeal/Squeak — The most common brake noise (by which we mean noises you only hear when you apply the brakes). Usually this means that a metal wear indicator in the brake pad has been exposed, indicating it is time to have the brakes replaced. Can also mean a brake is hanging, which can be caused by old or worn brake fluid.
Clunk — Usually means that one or more of the brake components is loose. Requires immediate attention.
Grinding — A rough grinding noise indicates metal-to-metal contact, which usually means the brake pad has been worn through. Have your brakes checked immediately.
Now hopefully you will feel more prepared when describing your vehicles sounds to your mechanic.
Have one of these sounds you need to have checked out? Call our service department. They are here for you. 940-243-6233.