April 25, 2025

Engine Noise That Requires Attention

We’re no strangers to the many different sounds that an engine can make. Some are harmless, but it’s important to know when a sound requires a set of eyes to inspect it.

1.Knocking or pinging noises

If your engine makes a deep knocking sound, which is worse on acceleration, it could mean that parts deep inside the engine have worn out. If worn rod bearings are the culprit, they will give-out if you continue to drive. It is best if you park your car until you identify and repair the cause.

2.Ticking or clicking noises

Valvetrain components such as rocker arms, timing chains and camshaft followers make a ticking or clicking noise during motion, and this noise can be amplified if something is off. The most common cause of engine ticking we see is worn components of a low oil level. Sometimes, noises like this can be fixed by having your oil changed. If not more major engine investigation and repair will be necessary. or replacing one part. New noises should be investigated promptly to minimize damage to your engine.

3.Noises while accelerating

If you hear a noise at idle that increases is an indication that something is worn out and requires attention. These noises can start off as small issues but can quickly turn into more severe issues.

4.Now the Good News…

Engines are complex machines. If you happen to hear the occasional noise that’s short-lived and stops as quickly as it starts, then you probably don’t need to worry. This is usually something as harmless as your oil settling at the bottom of the engine when you start it. In fact, you may have noticed it more on winter mornings, when your oil is a bit thicker from the lower temperature.

If you have any doubts, it’s always better to be safe than sorry. Your engine is one of the most expensive parts in your car, and you want to be as proactive as possible to prevent any major damage.

What causes a chirping sound in the engine?

A chirping sound coming from an engine is usually caused by something related to the belt or pulley system. Here are the common causes:

  1. Loose or worn serpentine belt: If the belt is slipping or worn out, it can make a high-pitched chirping or squealing noise.

  2. Misaligned pulleys: If a pulley is misaligned, the belt might not track properly, causing a chirp.

  3. Worn or failing belt tensioner: If the tensioner isn’t applying enough pressure, the belt can slip and chirp.

  4. Worn pulleys or bearings: Bearings in accessories like the alternator, power steering pump, or idler pulleys can wear out and cause noise.

  5. Moisture on the belt: Sometimes water or oil on the belt can cause a temporary chirping until it dries or is cleaned.