Rattling Noise From Under the Car: Causes
A rattle from underneath usually points to the exhaust or suspension. A Cranbourne West specialist explains.
What it usually means
A rattle from under the car is commonly a loose or corroded exhaust (a broken mount, heat shield or failing flexi-pipe), or worn suspension components (links, bushes or a worn sway-bar). A heat-shield rattle is often worst at certain RPMs; a suspension rattle is worst over bumps.
When the rattle happens — at idle, on bumps, or at certain revs — helps pinpoint it.
What you should do
Get it checked — an exhaust leak can let fumes in and is a roadworthy item, and worn suspension affects safety.
We put it on the hoist and inspect the exhaust, heat shields and suspension to locate the rattle.
How we find & fix it
Because the same symptom can have several causes, we use dealer-level diagnostics and a methodical check to pinpoint the real cause — rather than throwing parts at it.
You get a clear explanation and a fixed written quote before any work. Book online in 60 seconds or call 03 8782 0711.
Rattling Noise From Under the Car: Causes — FAQ
Usually a loose exhaust/heat shield or worn suspension components — when it happens helps tell which.
It can let fumes in and is a roadworthy item — worth fixing.
Yes — worn links, bushes or sway-bar parts rattle over bumps. We check on the hoist.
We inspect the exhaust, heat shields and suspension on the hoist.
Related guides & services
More guides like this
Car doing something odd?
Book your car in online in 60 seconds — RACV-accredited, fixed written pricing, no surprises. Or call 03 8782 0711.