Car Sounds and What the Issue Could Be

Unusual noises are signs that your vehicle needs servicing. It is an indication that some parts have become loose or damaged completely. Below, we provide some clues about certain sounds and what the problems could be.

Squeaky Brakes

Brakes tend to make noise when they need replacement. A squeaking sound emanating from the brakes is an indication that the brake rotors or brake pads are worn. A technician would help to lubricate and replace worn parts if necessary.

Engine Rattling

The rattling noises from the engine is the result of premature ignition. The issue may be due to poor ignition timing, overheating engine, or incorrect fuel octane. These problems occur from an improper mixing of air and fuel in the engine cylinder, causing early ignition. It may also result in damage pistons, connecting rods, and valves.

Engine Clicking

Engine clicking noises usually indicate low oil levels. One option to alleviate the clicking sounds is to check the oil level with a dipstick and restoring the oil level if it too low. If clicking sound continues, then your car might have an issue with the upper valve train.

Knocking Sound Under the Hood

When knocking sounds beneath the hood occur, it's best to address it immediately. This noise can be indicating damage to major components such as the pistons, valves, or connecting rods. A technician is the best person to assess the issue and determine the proper servicing or repairs.

Engine Squealing

Older vehicles will usually produce a squealing engine sound when the accessory belt is loose or too worn. Similarly, the serpentine belt will produce the same squealing sound when it's misaligned, too loose, too tight, or worn down from friction.

Contact our Nissan dealership to schedule an appointment. Or, visit our service center in Decatur for an inspection of strange car sounds. Our service experts are happy to help alleviate any car sounds and get your car back to its proper condition.