Grinding noise when braking and turning left.

Bright my 2013 charger in for a recall. I asked them to see if they can tell me why it's grinding. It happens only when i brake and turn LEFT at the same time. (Its not brakes or rotors).. they seemed like they forgot to check when i asked. Then he goes oh uhhhh its the strut tensioner… we can fix for $700…. thanks but no thanks buddy! So let me ask you guys. wouldn't tensioner with the ball joint make more of a clunk? I don't see how that would create a grinding, scraping sound.
Anyone have any ideas please?

My car has 72000 miles.
My car has an automatic transmiss

Experienced mechanics share their insights in answering this question :
Hi there. The grinding noise seems to be a rotating item on your vehicle. Check the wheel bearings on the front of the vehicle and see if there is any dust around them. If there is dust, then the bearing grease is dry enough to where only you feel the grinding when turning as the bearing gets more stress applied as the weight of the vehicle is pressed on or against the bearing. This is not a strut or suspension issue as the items only move when turning or start / stopping. They will not make a grinding noise. Now, I have seen a loose tire make a grinding noise as the wheel is rubbing on the rotors. Also, if your tires are too wide, they will rub the tread on the frame or a bolt causing the grinding noise as well. I recommend jacking up the vehicle and removing the front wheels and checking the front wheels and tires to see if there is any scraping marks on the wheels and if any of the inside sidewall tread is missing. If you need further assistance with you front end making a grinding noise when turning and braking, then seek out a professional, such as one from Your Mechanic, to help you.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Grinding noises can appear when the brake friction material or brake linings have worn away and the steel brake rotor is rubbing against the metal brake pad backing. This causes metal-to-metal contact when the brakes are applied, creating a grinding noise.
If you hear this sound, it likely means you`ve worn out your brake pads to the point of exposing their metal backing plates, which are now rubbing against the metal of your brake rotors.
The noise sounds like the wheel hub bearings are grinding as you are turning. Lift up the vehicle and put all the wheels off the ground and spin the front wheels. Listen and feel the wheels for any weird sounds and grinding feeling. If there is a feeling and grinding sound, then the hub bearings will need replaced.
The most common reasons for you hearing a grinding noise when you brake is likely because you have poor quality brake pads, worn brake pads, worn shims, worn brake rotors, faulty wheel bearings, debris stuck in brakes, insufficient lubrication on brake parts, or you`re simply not driving your car enough, allowing the …
One possible cause is debris or dirt stuck in the brakes, which can create friction and lead to a grinding noise. Another potential reason is a misalignment of the brake calipers, causing them to rub against the rotor instead of smoothly pressing against it.
If you only hear the scraping noise when turning corners it could be due to a number of different things, but the most common cause is worn wheel bearings.
A loud clicking noise when turning left or right can usually be attributed to a faulty CV joint. Your car`s CV joints are covered with grease and enclosed in protective boots. If this boot breaks, grease will leak out and the CV joint will become unlubricated.
If you notice strange sounds when you are braking, this could be caused by low brake fluid or another brake system issue. Common sounds include scraping or grinding noises. Burning smells after hard braking could mean that you have burnt-out brake fluid.
When the pads and shoes wear down, it can result in a metallic grinding noise, as the backing plate starts making contact with the rotor or drum. Brake pads also have a metal wear indicator that drags on the rotors when the pads are worn out. This will make a grinding or squealing noise.
When a wheel bearing is damaged or worn out, it may produce a bit of a grinding or howling noise that will be more noticeable with speed. In addition to the noise, it will also generate a significant amount of heat in the wheel area, which can potentially damage other parts.
If you are getting a grinding noise from the front wheels when driving then the most common cause is the brakes are worn causing the brake pads backing plate rubbing on the rotor metal to metal. Have you brakes inspected to see if just the one side is worn down indicating the caliper is sticking.
If your rotors are faulty, they may produce a squeaking, squealing, or grinding sound when you apply the brakes. Warped rotors usually emit a high-pitched squeak, while severely worn rotors tend to make a scraping noise.

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