Skip the auto shop - Our mechanics make house calls

Q: Loud bang when backing up only

asked by on

When I back up turning to the left it makes a loud popping sound if I back up to the right sometimes it don't do it I changed the top ball joint and the bearings I'm thinking it's the lower ball joint should I change it it's only $20 for the lower ball joint or should it be the whole upper control arm that needs to be changed? And I'm really broke I have to fix this myself

My car has 194000 miles.
My car has an automatic transmission.

If the only time the pop occurs is when you are backing up and turning, then this isn’t necessarily something that must be fixed immediately. Many trucks will exhibit such noises and most of the time they don’t have any other problems. If the car drives straight without any problems and there isn’t any tire wear due to alignment issues, I personally wouldn’t do anything.

If for some reason you feel it still needs to be replaced, the lower ball joint is the most common culprit with popping such as this. Followed by the control arm bushings and then the upper ball joint. Of course, what is common doesn’t tell us what is making the popping on your truck. Ideally, having an alignment technician shake down your front end on an alignment rack would be the best way to know for sure. Barring do this, I would begin with the lower ball joint.

If you find you need control arm bushings, changing the entire control arm versus just the bushings will be determined by how they are sold and the capabilities you have to press bushings in and out of the old control arm. The lower ball joint could certainly be part of this equation. You may be able to purchase the lower control arm complete with lower ball joint and bushings. Also, cheaper parts often result in more problems. The front end of your truck experiences a lot of loads and stresses that do much better with higher quality parts.

If you should need help with any part of this repair, I recommend the following inspection; Clicking or popping noise to properly address this issue.

Good luck!

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My air conditioning works on low but it quits when I'm stopped?

It sounds like your blower motor is not working and you are feeling the flow of air from outside coming in. The problem may be with the blower motor or resistor. Have the blower motor and resistor tested by a...

Q: its a power wagon 1500 and there is a problem running it

Hi there. Several things could cause a stalling issue when putting the vehicle in gear (cold). Assuming, the choke is manually operated. The engine may not be getting to operating temperature, ie; thermostat stuck open, before releasing the choke. Assuming,...

Q: I have a 2013 Dodge Durango... The Service Power Steering Light comes on frequently....

Under normal operating conditions, the EPS light comes on when the ignition switch is turn on, then goes off when the engine is started. If the EPS light remains on when the engine is running, there is a problem with...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...