Skip the auto shop - Our mechanics make house calls

Symptoms of a Bad or Failing Control Arm Assembly

Control Arm Assembly

Bad or Failing Control Arm Assembly Inspection

by a top-rated mechanic at your home or office

A control arm, commonly referred to as an A-arm, is a suspension component found on virtually all road going passenger vehicles. It is a suspension link that connects the wheel hub and steering knuckles to the chassis. They are equipped with bushings and ball joints that allow it to flex and move according to road conditions and steering input from the driver. Over time, the bushings or ball joints on the control arm wear out and can cause all sorts of problems. Usually a problematic control arm assembly will produce a few symptoms that can alert the driver of a potential problem that should be serviced.

HAVE SYMPTOMS OF CAR TROUBLE?
Get an $80 diagnostic
by a top-rated mechanic at your home or office.

Get a quote · Book an Appointment · Our expert mechanics come to you.

1. Steering wheel vibration

One of the first symptoms commonly associated with bad control arms is steering wheel vibrations. If the bushings or ball joints in the control arm become excessively worn it can cause wheel shimmy, which may cause vibrations that may be felt in the wheel. The vibrations may increase as you accelerate and smoothen out once you are traveling at speed.

2. Steering wandering

Another symptom commonly associated with bad or failing control arm assembly is steering wandering. Excessively worn ball joints or bushings can cause the vehicle’s steering alignment to shift, which may cause the steering to pull to the left or right when traveling down the road. This will require a constant correction from the driver in order to steer the vehicle straight.

HAVE SYMPTOMS OF CAR TROUBLE?
Get your car fixed at your home or office.

Get a quote · Book an Appointment · Our expert mechanics come to you.

3. Clunking noises

Clunking noises are another symptom of possible problems with the control arms on a vehicle. If the bushings or ball joints develop excessive play or looseness, this can cause them to knock during takeoff, or when the vehicle is traveling over rough terrain. The clunking sound will continuously get louder as the component wears or until it eventually breaks.

The control arms on a vehicle are very important suspension component, as they are the component that links the spindle, hubs, and therefore wheel to the vehicle’s chassis. When they become worn it can cause problems for the vehicle that may compromise handling, comfort, and safety. For this reason, if you suspect that your vehicle’s control arms may be bad or worn, have the vehicle’s suspension inspected by a professional technician, such as one from YourMechanic. They will be able to replace your control arm assembly if required.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Still not sure about your car's issue?
Diagnose your car
What kind of issue are you experiencing?
Brakes are squeaking
Car is not starting
Car is overheating
Car is shaking (vibrating)
Fluids are leaking
Heating and A/C
Smoke or steam is coming out of the car
Warning light is on
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed Related Trouble Codes: P2441: EVAP Vent Valve Stuck Open EVAP trouble...


Related questions

Q: Steering does not respond properly, do i need to replace the gear box?

As you know, the sway bar connects suspension components on opposite sides of the vehicle. The stabilizer bar should be checked for stiffness. This causes side-to-side motion in the car which affects steering and handling of the vehicle. Failure to...

Q: Car shakes when in idle.

Hi there. With this many issues you really need to enlist the assistance of a certified mechanic, like one from YourMechanic, that has the knowledge and tools to do this. If you have a bad control arm it will typically...

Q: Traction control alarm goes off, brakes grab sometimes

Hello there. A few different faults could cause the traction control system to alarm. The most common would be a wheel speed sensor, wiring fault, or a failing traction control module. If you would like to have this checked, a...