Clunking Noise After Hitting a Pothole - Top Causes, Fixes & What to Do

Certified Professional Automotive Mechanic – Owner and Editor of VehicleRuns

Last Updated: September 7, 2026

Safety note: Troubleshooting guidance can help you narrow down likely causes, but it cannot replace an in-person inspection. If the vehicle feels unsafe, warning lights are flashing, you smell fuel, see smoke, notice overheating, or have problems with braking, steering, or control, stop driving when it is safe to do so and have the vehicle inspected.

A clunking noise that starts after hitting a pothole usually means something was loosened, shifted, or damaged by the impact. In many cases the source is in the suspension or steering, but wheels, tires, splash shields, and other underbody parts can also make a similar sound.

The most useful clue is when the clunk happens. A noise only over bumps points in a different direction than a clunk that happens while turning, during braking, or along with a pull, shake, or loose steering feel.

Some pothole-related clunks are annoying but not urgent. Others can mean a worn ball joint, loose steering part, bent wheel, or tire damage that should be checked before you keep driving much farther.

Start by matching when the noise happens and what changed after the impact. A clunk over small bumps points to different parts than a clunk with steering, a new pull, or a shake at speed.

What you notice	Most likely cause	What to check first	Urgency
Clunk only over small bumps	Worn sway bar link	Inspect sway bar links and bushings for play or torn boots	Diagnose soon
Clunk while turning and over bumps	Ball joint or tie rod play	Lift the front end and check for looseness at the wheel	Can worsen
Heavy bang, then pull or vibration	Bent wheel or tire damage	Inspect the rim and tire sidewall for bends, bulges, or cuts	Stop driving
Noise seems high in one front corner	Strut mount damage	Look for a shifted mount, broken rubber, or leaking strut	Can worsen
Metallic clunk under car after impact	Loose splash shield or exhaust	Check underbody panels, brackets, and exhaust hangers for contact	Diagnose soon

Best first move: If the car still drives straight, start with a careful visual inspection of the wheel, tire, suspension links, and anything hanging under the car on the side that hit the pothole.

Safety note: Do not keep driving if the car pulls sharply, the steering feels loose, the tire has a bulge or cut, or the wheel area makes a repeated bang with every rotation.

Table of Contents

Most Common Causes of a Clunking Noise After Hitting a Pothole

On most vehicles, a pothole-related clunk comes from a loosened or worn front suspension part rather than the engine or transmission. The three causes below are the most common starting points, but a fuller list appears later in the article.

Worn Sway Bar Link or Bushing: A pothole impact can finish off an already worn sway bar link or bushing, causing a light clunk that is most noticeable over small bumps.
Worn Ball Joint or Control Arm Bushing: If a joint or bushing already has play, a hard pothole hit can make it start knocking as the suspension loads and unloads.
Damaged Strut Mount or Strut Assembly: A sharp impact can damage the upper mount or internal strut components, leading to a deeper clunk from one corner of the car.

What a Clunking Noise After a Pothole Usually Means

A clunk after a pothole usually means there is unwanted movement somewhere that should be held tightly in place. Suspension links, bushings, mounts, and steering joints are designed to move in controlled ways. Once one of those parts develops play, the impact from a bump can make metal or hard rubber shift suddenly and create a knock or clunk.

Where you hear and feel the noise matters. A clunk that seems to come from one front corner often points to a sway bar link, ball joint, strut mount, or control arm bushing on that side. A sound more from the center or under the floor can come from a loose splash shield, exhaust hanger, or underbody bracket struck by the pothole.

The exact trigger also helps narrow it down. If the noise happens only over bumps, think suspension hardware first. If it also happens while turning, braking, or backing out of a driveway, parts that take changing load angles such as ball joints, control arm bushings, tie rods, or strut mounts move higher up the list.

If the pothole impact was hard enough to bend a wheel or damage a tire, the problem may not stay just a noise. That version often adds a pull, steering wheel shake, or a thump that changes with road speed. When the sound comes with those symptoms, the wheel and tire need immediate attention.

Possible Causes of a Clunking Noise After Hitting a Pothole

Worn Sway Bar Link or Bushing

Sway bar links and bushings are common clunk sources because they react to quick left-right suspension movement over small bumps. A pothole hit can crack a worn link joint, tear a boot, or shift a bushing enough that the bar starts knocking against its mounts.

Symptoms to Watch For

Clunk is sharper over small bumps than over large dips
Noise is often worse at low speed in parking lots or neighborhood streets
Usually comes from one front corner
Handling may feel mostly normal aside from the noise

Moderate Severity

This is often not an immediate breakdown issue, but the noise usually gets worse and overall stability can degrade as the link or bushing loosens further.

How to Confirm: With the vehicle safely lifted, grab the sway bar link by hand or use a pry bar to check for looseness at the joints.

Typical fix: Replace the worn sway bar link, sway bar bushings, or both, then torque the hardware to spec.

Worn Ball Joint or Control Arm Bushing

Ball joints and control arm bushings keep the wheel located as the suspension moves. If they already have wear, a pothole impact can make that play obvious, causing a heavier clunk when the wheel moves up, down, or changes direction under load.

Symptoms to Watch For

Clunk happens over bumps and sometimes during turns or braking
Car may feel less planted or slightly wander
Tire wear may already be uneven
Noise can be heavier than a sway bar link clunk

High Severity

A badly worn ball joint or control arm bushing can affect steering control, alignment, and tire wear, and severe joint failure can become a safety issue.

How to Confirm: Raise the affected corner and check for movement with the wheel at 12 and 6 o'clock and again at 3 and 9 o'clock.

Typical fix: Replace the worn ball joint, control arm, or bushing assembly and perform a wheel alignment.

Damaged Strut Mount or Strut Assembly

A hard pothole impact can damage the upper strut mount, bearing plate, spring seat, or the strut internally. When that happens, the suspension can knock as the strut moves through travel or as the spring shifts slightly in the mount.

Symptoms to Watch For

Noise seems high in the wheel well or near the strut tower
Clunk may happen on compression and rebound
Ride may feel harsher or bouncier than before
You may see oil leakage from the strut body

Moderate to High Severity

A damaged strut mount may be drivable short term, but a failing strut or broken mount can quickly worsen ride control and may affect steering feel and braking stability.

How to Confirm: Inspect the strut for fluid leakage, a broken spring seat, or a damaged upper mount.

Typical fix: Replace the damaged strut mount or strut assembly, often in pairs on the same axle, and align the vehicle if required.

Bent Wheel or Tire Damage

A pothole can bend the wheel lip, bruise the tire casing, or separate an internal belt. That may create a clunk or thump right after impact, especially if the damaged area contacts the road unevenly or the wheel no longer runs true.

Symptoms to Watch For

New vibration or thumping at certain speeds
Car pulls or steering wheel is off-center after the impact
Visible bulge, cut, or sidewall damage
Air loss starts soon after the pothole hit

High Severity

Wheel and tire damage can lead to sudden air loss, worsening vibration, and reduced control, especially at higher speeds.

How to Confirm: Inspect the tire sidewall and tread closely for bulges, cuts, or cords showing.

How to Diagnose a Bent Wheel or Wheel Runout

Typical fix: Replace the damaged tire, repair or replace the bent wheel when appropriate, and rebalance the assembly.

Worn Tie Rod End or Steering Component

A pothole can aggravate play in a tie rod end or another steering joint that was already worn. As the wheel changes direction over bumps or during steering input, that looseness can create a distinct knock or clunk.

Symptoms to Watch For

Noise increases when turning into driveways or parking spaces
Steering feels loose or less precise
Vehicle may drift or need small corrections
Front-end alignment may change after the impact

High Severity

Steering component play is a safety concern because it can progress from noise to poor control and accelerated tire wear.

How to Confirm: With the front end lifted, move the wheel left and right while watching the outer and inner tie rod ends for delay or free play.

How to Diagnose Worn Steering Components

Typical fix: Replace the worn tie rod end or related steering component and perform a wheel alignment.

Loose Splash Shield, Underbody Panel, or Exhaust Hanger

Not every pothole clunk is suspension-related. A pothole can knock an underbody shield loose, bend a bracket, or shift an exhaust hanger so that a panel or pipe taps the body or subframe over bumps.

Symptoms to Watch For

Noise seems lower and more centered under the car
Metallic clunk or rattle after the impact
No change in steering feel or ride quality
You may hear scraping or dragging at low speed

Low Severity

This is usually less serious than a steering or suspension fault, but a loose panel can fall off and a shifted exhaust part can eventually wear through or contact other components.

How to Confirm: Inspect underneath for missing fasteners, fresh scrape marks, hanging plastic, bent heat shields, or exhaust parts sitting too close to the body.

Typical fix: Retighten or replace missing fasteners, secure or replace the damaged shield or bracket, and reposition or repair any loose exhaust hanger.

How to Diagnose the Problem

Think back to the exact moment the noise started and which wheel hit the pothole hardest.
Check the tire and wheel first for a sidewall bulge, cut, crack, bent rim lip, or sudden air loss.
Drive slowly over a small bump and note whether the clunk happens on one side, on compression, on rebound, or during steering input.
Listen for changes during turning, braking, backing up, and driving straight. That pattern helps separate steering play from simple bump noise.
Inspect the sway bar links, sway bar bushings, control arms, and visible bushings for torn boots, fresh metal marks, or shifted parts.
Look at the strut and upper mount area for leakage, broken rubber, or signs the spring or mount has moved.
Check tie rods, ball joints, and wheel play with the front end safely lifted if you have the equipment and know how to do it properly.
Inspect underneath for loose splash shields, underbody panels, heat shields, or exhaust hangers that may have been struck.
If the car now pulls, vibrates, or the steering wheel sits crooked, have wheel runout, tire condition, and alignment checked by a shop.
If no obvious fault is visible but the clunk remains, a lift inspection with pry-bar checks is usually the fastest next step.

Can You Keep Driving After a Clunking Noise From a Pothole?

Important: The guidance below is general and cannot confirm that your specific vehicle is safe to drive. If a symptom affects braking, steering, handling, fuel, overheating, smoke, visibility, or vehicle control, treat it as potentially serious and have the vehicle inspected before continued driving when appropriate. For more context, see our Automotive Safety Disclaimer.

Whether you can keep driving depends on what changed after the pothole. A minor underbody panel noise is very different from a clunk paired with loose steering, a pull, or a damaged tire.

Okay to Keep Driving for Now

It may be okay to drive for now if the noise is light, the car still tracks straight, the steering feels normal, and you find only a loose shield or minor hardware issue. Even then, schedule a proper inspection soon because some suspension problems start subtle.

Maybe Okay for a Very Short Distance

A very short trip to home or a nearby shop may be reasonable if the clunk is moderate but the vehicle remains controllable and the tire and wheel show no visible damage. Avoid highway speeds, hard braking, and rough roads until it is checked.

Not Safe to Keep Driving

Do not keep driving if the impact caused a tire bulge, rim bend, rapid air loss, strong pull, steering looseness, repeated banging, severe vibration, or any feeling that the wheel is not securely located. Those signs can point to wheel, tire, ball joint, or steering damage.

How to Fix It

The right fix depends on what the pothole actually damaged or what worn part the impact exposed. Some cases are simple hardware or panel issues, while others need suspension, steering, wheel, or tire repairs.

DIY-friendly Checks

Check the tire, wheel, and underbody visually, tighten an obviously loose splash shield fastener, and compare the noisy corner with the other side for torn boots or shifted parts.

Common Shop Fixes

A shop will often replace sway bar links, control arms, tie rod ends, strut assemblies, or damaged tires and wheels, then perform balancing and alignment as needed.

Higher-skill Repairs

Deeper repairs may involve pressed-in bushings or ball joints, diagnosing hidden steering play on a lift, or correcting wheel runout and suspension geometry after a hard impact.

Related Repair Guides

Typical Repair Costs

Repair cost depends on the vehicle, where you live, and exactly what the pothole damaged. The ranges below are typical U.S. parts-and-labor estimates, not model-specific quotes.

Sway Bar Link Replacement

Typical cost: $120 to $350

This is a common pothole-noise fix and the price varies mainly by vehicle design and whether one or both links are replaced.

Control Arm or Ball Joint Replacement

Typical cost: $250 to $800 per side

Cost rises when the ball joint is integrated into the control arm or when alignment is needed after repair.

Strut Mount or Quick Strut Replacement

Typical cost: $350 to $1,200 per axle

The lower end usually covers a single mount or simpler strut job, while complete paired strut assemblies cost more.

Wheel Alignment

Typical cost: $100 to $250

This usually applies after steering or suspension repairs or when the pothole changed tracking or steering wheel position.

Bent Wheel Repair or Replacement

Typical cost: $150 to $700+

Minor steel wheel correction is cheaper, while alloy wheel replacement can be much more expensive.

Tire Replacement and Balance

Typical cost: $150 to $450 per tire

Price depends heavily on tire size, type, and whether pothole damage caused a sidewall bulge or internal belt problem.

What Affects Cost?

Vehicle type and suspension design
Labor rates in your area
OEM versus aftermarket parts choice
Whether alignment, balancing, or additional parts are needed
How much hidden damage the pothole caused

Cost Takeaway

If the car only clunks over small bumps and otherwise drives normally, the fix often falls on the lower end with links, bushings, or panel hardware. Once the pothole adds steering looseness, tire damage, vibration, or alignment change, costs usually move into the mid or upper range because more critical parts are involved.

Symptoms That Can Look Similar

Parts and Tools

FAQ

Can a Pothole Really Cause a Clunking Noise Right Away?

Yes. A hard pothole hit can damage a wheel or tire immediately, but it can also expose wear that was already present in a sway bar link, ball joint, control arm bushing, strut mount, or tie rod.

Is a Clunk After a Pothole Always Suspension-related?

No. Suspension and steering parts are common causes, but a loose splash shield, heat shield, or exhaust hanger can also start clunking after an impact and sound similar from inside the car.

What if the Car Only Clunks Over Bumps but Drives Straight?

That pattern often points to a sway bar link, bushing, or strut-related issue rather than severe wheel or steering damage. It still deserves inspection, but it is usually less urgent than a clunk paired with pull or vibration.

Should I Get an Alignment After Hitting a Pothole?

If the steering wheel is no longer centered, the car pulls, or suspension or steering parts were replaced, yes. Alignment will not fix a loose part, but it is often part of the final repair after pothole damage.

Can I Keep Driving if There Is No Visible Tire Damage?

Maybe for a short distance, but only if the steering feels normal and there is no pull, shake, or repeated heavy clunk. Hidden tire belt damage and steering play are possible even when the outside looks fine.

Final Thoughts

A clunk that starts after hitting a pothole is usually a clue that something now has play, shifted position, or impact damage. The fastest way to narrow it down is to note exactly when the noise happens and whether the car also developed a pull, shake, or loose steering feel.

Start with the obvious and safety-critical checks first: tire, wheel, steering feel, and visible suspension damage. If those pass, move to common wear items like sway bar links, control arm bushings, and strut mounts. The sooner you separate a minor underbody noise from a true steering or suspension fault, the better your next decision will be.