Car making popping noise when braking.

ANSWER : After seeing the video, you will need to have the lower ball joints and bushings checked to see if one or all need to be replaced. You should also have the exhaust checked to see why the engine is so loud. A professional mechanic, such as one from YourMechanic, will be able to thoroughly conduct tests to diagnose your vehicle’s popping noise and make the appropriate repairs.

ANSWER : Hi there. From the description you have provided your vehicle’s moaning noise and intermittent stalling problem could be any number of things. It could be a failed alternator diode making the moaning noise and affecting the idle.

A failed alternator diode(s) allows voltage to flow both directions or no flow at all resulting in noise heard and erratic electrical operation. It could be a faulty idle air control valve. The idle air control valve can make noise and would account for the erratic idle and sporadic dying. It could be an accessory component, such as an A/C compressor, serpentine belt tensioner, or idler pulley, power steering pump making noise and placing undo load on the engine at idle. If you would like to have this done, a certified professional from YourMechanic can come to your car’s location to diagnose the noise and stalling issue.

ANSWER : A common cause of a noise like that is tire belt (internal) separation, flat spot(s) on tire or other tire defects. If the tires end up being excluded during a diagnostic, the CV axles, wheel bearings, and unfortunately the transmission and clutch have to be considered. The noise on turning is suggestive of a possibly defective outer CV joint but very loose tie rods ends and ball joints can sometimes be implicated. Also, it is possible to have a bad strut bearing, in the strut mount. Keep in mind, a "combination" of faults might be in play here. Your best bet is to request a front end inspection/diagnostic during which the responding certified mechanic will get this resolved for you insofar as identifying the root cause(s) and estimating the repair for you.

ANSWER : It sounds like you may be dealing with a few issues. I would start by asking if there is a check engine light on? If there is, then getting the engine control module scanned for faults would be the first step to diagnosing the low power issue. As far as the noise over bumps and when turning, there could be a damaged CV joint or axle shaft, or there could be a loose suspension or steering component. Weak motor mounts could cause a weird noise and shake when going into reverse with your foot on the brake, so it’s possible those have failed as well. I would suggest having a qualified mechanic, such as one from YourMechanic, diagnose the noise over bumps and the noise when put in reverse.

ANSWER : It sounds like you need to check your front brakes. Most of the braking is done with the front brakes, therefore they tend to wear out more quickly than the rear brakes. If you let it go too long, you will need to replace the rotors as well. Have the brakes checked ASAP as this is also a safety concern for you and others on the road. I suggest having a certified technician, like one from YourMechanic, inspect your braking system to determine the exact cause of your concern.

ANSWER : Hey there, thanks for writing in. I would have a professional mechanic check out the constant velocity joints on your vehicle. One or more of them may be worn enough to cause the noises you describe. S/he can diagnose and replace any failed CV joints.

ANSWER : Hi there. It is important to have this noise checked before it becomes a serious safety issue. An e-brake that is not engaging should not cause the noise you have described unless a part has come loose or there is a buildup of rust in/around the drum brakes. This could also be coming from the newly installed front brakes if they were not installed properly, a shield was bent, or something has become lodged around the brake pads or rotors. I strongly suggest asking a qualified technician to perform an inspection to avoid replacing unnecessary parts. YourMechanic has several available technicians that can assist you with a car is making a noise while driving inspection and provide an estimate and direction of repair.

ANSWER : Hello – noises from under the car when starting and stopping are most likely from suspension components, especially with your advanced mileage. The vehicle rocks front-to-back in both scenarios because of shifts in weight distribution. Worn ball joints, control arm bushings, sway bar links, and strut bearings are all stressed during start/stop activity. I would recommend a thorough inspection of the suspension for work or failing components by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.