7 Strange Car Noises You Should Never Ignore

Your car communicates with you through sounds. Learning to recognize these common warning noises can save you thousands in repairs and prevent breakdowns.

1. Squealing When Braking

What it sounds like: A high-pitched squeal or squeak when you apply the brakes
What it means: Your brake pads have wear indicators that create this sound when pads are getting thin. Time for new pads soon.

2. Grinding When Braking

What it sounds like: A harsh metal-on-metal grinding noise
What it means: Your brake pads are completely worn out. You’re now grinding metal rotors — this is an urgent safety issue. Stop driving and call for service immediately.

3. Clicking When Turning

What it sounds like: A rhythmic clicking noise that speeds up as you accelerate, especially noticeable when turning
What it means: Most likely a worn CV (constant velocity) axle. If left unchecked, the axle can fail completely, leaving you stranded.

4. Whining When Steering

What it sounds like: A whining or groaning noise when you turn the steering wheel
What it means: Low power steering fluid or a failing power steering pump. Check fluid level first; if it’s full, the pump may need replacement.

5. Knocking from the Engine

What it sounds like: A rhythmic knocking or tapping sound from under the hood
What it means: Could be low oil, worn engine components, or fuel issues. This needs immediate professional diagnosis to prevent engine damage.

6. Hissing from Under the Hood

What it sounds like: A hissing or sizzling sound
What it means: Likely a coolant leak — the hissing is coolant hitting hot engine surfaces. Check for sweet-smelling steam or puddles under the car. Overheating can cause major engine damage.

7. Rattling Under the Car

What it sounds like: A metallic rattle, especially when driving over bumps
What it means: Usually a loose exhaust component or heat shield. While not immediately dangerous, it could lead to exhaust system damage or a fire hazard if left too long.

Hearing something unusual? Don’t wait. Call Jeljo for a mobile inspection — we’ll come to you and diagnose the issue.