Knocking Noise Under Your Car or Truck? Simple Suspension Solutions!

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Is there a knocking noise happening under your car or truck more than just when you hit bumps? Usually the fist thought is a strut or spring, but sometimes it’s the sway bar link! In this video, Sue points out how and why a sway bar link might break and what kind of problems it can cause! Sway bar links connect the sway bar, or anti-roll bar, to some other suspension component, like a strut or control arm. These links usually have a swivel joint so that they can move with the articulation of your vehicle’s suspension. Over time the joint can wear down and break, leaving the bar of the link swinging free to clunk and bang on all sorts of things! While it may seem like a simple problem that you can put off, there is real potential for damage, so make sure to give this one your attention as soon as you can!

🔧 List of tools used:
• Flat Blade Screwdriver
• Pry Bar
• Complete Metric Wrench Set
• Complete Metric Socket Set
• Floor Jack
• Jack Stands

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⚠ DISCLAIMER:
While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

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90 Comments

Avatar of @ndumbadavid20
@ndumbadavid20
12.06.2025
Perfect 💯 🥰
Avatar of @alkalineph9446
@alkalineph9446
12.06.2025
I love your channel the video production is top notch, comparison videos and helpful, friendly and clear presenter, and direct access to parts and tools.
Avatar of @marcmeyers1080
@marcmeyers1080
12.06.2025
So you put a camera underneath the car where you thought the noise was coming from. to film it and then see that link broken .
Lol
Avatar of @LugNuts2.0
@LugNuts2.0
11.06.2025
Great video!
Avatar of @louhawk559
@louhawk559
11.06.2025
Brave one standing under that.
Avatar of @maahermzere661
@maahermzere661
11.06.2025
hello my friend you are the best
Avatar of @MegaKrittapas
@MegaKrittapas
10.06.2025
So appreciated for your info and good explanation.^^
Avatar of @sixpackbinky
@sixpackbinky
10.06.2025
Ever since I had the driver side hub replaced I have had this banging noise when I got it back from the shop. When I make a left turn it wobbles ,I feel a definite wobble on a left turn. And every time I have someone look at it , they say they can’t find anything wrong. I guess I’m gonna have to ask them to check the sway bar because the mechanic is incompetent or I’m crazy.
Avatar of @sinegra30
@sinegra30
10.06.2025
Sorry but you have no idea what the is the function of a sway bar
Avatar of @aebeth6645
@aebeth6645
07.06.2025
Wow this says alot I needed to know
Avatar of @japanautos96
@japanautos96
07.06.2025
Good 👍👍
Avatar of @jamesr2888
@jamesr2888
07.06.2025
My SUV has the link connected to the lower control arm to the sway bar & have torsion bars. My right (pass side) shock is leaking which put more stress on the link in turn lost the bushings. So, if your links are failing, inspect your shocks & struts.
Also, if your vehicle is all over the road & handles like a boat, check your links ASAP, especially with SUV's since they sit high & are top heavy. This can be a serious safety issue if you have to swerve to avoid something in the road or an unsafe lane change from another driver. You can lose control & roll it.
Avatar of @Schlipperschlopper
@Schlipperschlopper
22.05.2025
Sadly from 2030 on all combustion cars including classics will be banned
from public streets in entire EU and Scandinavia :-( In Germany the
Green Peoples Party gave order to shorten fuel supply from 2025 on by
reducing all conventional fuel stations to only one state operated
central gas station per city or county. Now they even want to slow down
all the gas pumps from 20 litre per minute to 2 litre per minute...From
2027 on in the EU certain car spare parts will be banned too....as
exhaust systems, turbo chargers and even some engine and gearbox
oils...California and New York will do the same from 2027 on.... So no
investments should be done in oil burning cars any longer....They even
created a new kind of crime here, called emissions and smoke crime. :-(!!!!
Avatar of @prabuscross1.663
@prabuscross1.663
22.05.2025
How did you take that video?
Avatar of @EdyAutoservice
@EdyAutoservice
22.05.2025
Stabilizer link kocak penyebab suspensi bunyi
Avatar of @robertyen1033
@robertyen1033
21.05.2025
From Uruguay, thank you
Avatar of @NeutronX101
@NeutronX101
21.05.2025
Isn't removing the lower bolt easier than cutting they thick rod?
Avatar of @osvaldofernandez4712
@osvaldofernandez4712
21.05.2025
Semi ege fino es de milimetros sentimetras mayos pulgada tonticas
Avatar of @osvaldofernandez4712
@osvaldofernandez4712
20.05.2025
10 pulgadas semi eges
Avatar of @crankemup-69
@crankemup-69
20.05.2025
I enjoyed the info 😊
Avatar of @СергейЛукьянчук-о6о
@СергейЛукьянчук-о6о
20.05.2025
Непонятно, но крайне занимательно.
Avatar of @ryans413
@ryans413
10.05.2025
Let’s hope your not trying to steer into a corner sharply you’ll loose control the sway bar dose exactly what’s its name keeps the car from swaying to far to one side. Every time you turn sharply at speed the bar will twist and pull the other tire in the opposite direction keeping the car firmly planted on the road so you don’t loose traction
Avatar of @rashidnaga
@rashidnaga
10.05.2025
link broken can't snap.bud its loosen.not snap off like you cut this.
Avatar of @gurunaths7969
@gurunaths7969
10.05.2025
Very nicely explained , very detailed one, thank you
Avatar of @Schnippen_Schnappen1
@Schnippen_Schnappen1
06.05.2025
Looks like ford/mazda crap. I replace these all the time very common failure along with everything else ford/mazda
Avatar of @kensendlosky7438
@kensendlosky7438
06.05.2025
Great Channel. Very helpful
Avatar of @nikhil8108
@nikhil8108
06.05.2025
those are the reason's the tyre is getting eaten by roads 😂😂😂
Avatar of @tommitchell8425
@tommitchell8425
05.05.2025
How can these individuals own a motor vehicle and be so CLUELESS
Avatar of @randyscrafts8575
@randyscrafts8575
05.05.2025
That knocking noise under my car was a dude trying to cut off my catalytic converter while I'm on the freeway.
Avatar of @angelobaldi8820
@angelobaldi8820
05.05.2025
Cazzzzzo
Ora abbiamo anche la meccanica
Adore le donne
Ma stai hai fornelli oppure cambia lavoro...
,😭😭😭😭😭🌹
Avatar of @paulodasilvaandre7808
@paulodasilvaandre7808
27.04.2025
I have the Fiat Siena I had to replace the shock absorbers because of a broken fitting in the Bieleta shock absorber, very good video..
Avatar of @968porsche9
@968porsche9
27.04.2025
ANTI sway bar!
Avatar of @omrimuhamed2768
@omrimuhamed2768
27.04.2025
thank you very useful
Avatar of @Stevexnycautomotive
@Stevexnycautomotive
25.04.2025
That is dumbest engineer part is ever see on today car
Avatar of @benvance7189
@benvance7189
25.04.2025
I have just recently begun to watch some of your videos. You are incredible. Amazing teacher. You've empowered me to try many repairs, with success. Thank you, and please, keep recording more! Regards.
Avatar of @gratefuldale117
@gratefuldale117
25.04.2025
Not a bad idea while replacing one to do both, as they're the same age, so why not double down?
Not saying this theory applies to all suspension parts, but most except for CV Axles unless you really have money to burn!
Love your Instructionals!
Avatar of @lj1708
@lj1708
24.04.2025
This vehicle definitely belongs to somebody that live up North... Every single thing under there is rusted 🤣
Avatar of @nate4368
@nate4368
24.04.2025
Is having this minor skill worth being so unattractive?
Avatar of @Formerlywarmer
@Formerlywarmer
24.04.2025
It’s name is Anti sway bar.
Avatar of @XBFGamingX
@XBFGamingX
19.04.2025
So random question since I'm here does anyone at all trust plastic sway bar end links or should I invest in some aftermarket metal ones. It's on a jeep renegade
Avatar of @v1-vr-rotatev2-vy_vx31
@v1-vr-rotatev2-vy_vx31
19.04.2025
Been ordering parts from Detroit Axle, All with a Lifetime Warranty.
Avatar of @rushdrift
@rushdrift
19.04.2025
She look like those 1950 tough women in the poster very rare to find a women like this.
Avatar of @8minutesofinternet828
@8minutesofinternet828
18.04.2025
I just got this replaced 2nd time on a 10 year ford fiesta because of knocking noise

Comments are closed.