Anything from a faulty suspension system to low engine oil could be causing your car to make a rattling noise as you drive.
A rattling sound can signal that something is wrong with your car, so we would advise that you do not drive until the problem is fixed.
Read on and find out what could be causing the rattling noise, so you can find the right solution for your car.
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What Causes a Rattling Noise?
Your car could be making a rattling noise for any of the following reasons:
- A faulty suspension system
- Low engine oil
- A loose exhaust system
- Broken serpentine belt
- Broken catalytic converter
A rattling noise inside your car can have a quick fix, as there could be a loose object rolling around in the glove box, door storage pockets or cup holders.
Otherwise, the severity of the issue will depend on where you hear the noise.
Let's listen out for some of the rattling sounds you could be hearing...
A Rattling Noise When Driving Over Speed Bumps
If you hear the rattle when you drive over speed bumps, it is likely that a worn-out suspension component is causing issues.
Parts like the ball joints, tie rods or strut mounts could be causing the problem.
You should have the issue looked at right away and should not drive until it is resolved.
A Rattling Noise When Accelerating
A rattling sound that you notice when accelerating is likely to be caused by a broken or loose catalytic converter component.
If the cat converter is causing problems, you are likely to hear the noise at its loudest when you start the engine, and it will get worse as time goes on.
Worn suspension parts could also be to blame – a mechanic will be able to diagnose the fault for you.
Other causes of rattling when accelerating include alternator issues or low engine oil levels.
A Rattling Noise When Idle
If you hear a rattling noise when the car is idle, there could be a problem with a loose exhaust part or even with the engine.
A Rattling Noise Under the Car
A rattling noise underneath your car that sounds like metal can indicate that there is a mechanical problem.
The issue could be any of the following:
- A damaged exhaust system
- Faulty suspension system
- Damaged wheel bearings
- Loose nuts
- Failing catalytic converter
- Worn steering components
A Rattling Noise Under the Bonnet
A rattling noise under the bonnet could be caused by any of the following:
- Low or old engine oil
- A broken serpentine belt
- Worn engine mounts
- Faulty pulleys
- Worn timing chain
You should top up your engine oil when needed and check for leaks if you are concerned about low fluid levels.
Driving with a broken serpentine belt can lead to engine overheating, so you should check under your bonnet to see if you will need to have your car towed to a garage.
If you aren’t sure where the rattling sound is coming from, you can trust a professional mechanic to diagnose and fix the issue for you.
