Car Sounds and What the Issue Could Be

While regular maintenance can stop some problems before they start, parts may require attention in between check-ups. Sometimes, you may discover an issue when you hear strange noises emanating from the engine, brakes, or even underneath the hood. If that's the case, we offer some helpful information about what those car sounds are and what they may be indicating.

Squeaky Brakes

The brakes are one of the most critical parts of your car. Fortunately, the brakes will wear out gradually, giving you time to solve the issue. Squeaking brakes can indicate a wearing down of the brake pads, rotors, or other components in the braking system. When the parts wear down, they can cause the metal components on the brakes to rub together, which creates a squeaking noise. A certified technician can lubricate the brakes and replace the worn components if necessary.

Engine Rattling

If you hear the engine making rattling sounds, you may be hearing a premature firing in the engine cylinder caused by a mixture of air and fuel that ignites before it should. This issue, called pre-detonation or pre-ignition, can damage vital components such as the valves, pistons, and connecting rods. The root cause of the problem may be an issue with the knock sensor, computer, improper fuel octane, or the engine overheating.

Engine Clicking

The engine often makes clicking sounds if the oil pressure is too low. If you suspect this is the case, you can check the oil pressure level using a dipstick. If this doesn't solve the problem, it's time to check for other issues, namely in the upper valvetrain. Excessive valve lash may cause the engine to make clicking sounds, as can other parts that are worn or damaged.

Knocking Under the Hood

A knocking sound coming from beneath the hood can be a serious issue. This problem may indicate a secondary problem with the connecting rods, valves, or pistons. In any case, it requires a mechanic's immediate attention to avoid catastrophic damage.

Engine Squealing

An engine can make squealing sounds for several reasons. If you drive a newer vehicle, the issue may come from the serpentine belt, which can wear out and rattle the surrounding components. In an older vehicle, the problem may come from a worn or loose accessory belt that connects to parts such as the alternator, air conditioner compressor, and power steering pump.

If your car is making strange noises, it's time to contact our dealership for a diagnosis and expert repairs today.