What causes rear wheel noise - 2008 Lincoln Mkz

Is your car a rear wheel drive? If so, the limited slip differential grease is low...if front wheel drive could be right rear strut/shock assembly is totally worn out...wheel bearing maybe, but usually makes a grinding noise...does applying the brakes affect this stuttering? Should be a free inspection at most quality repair shops...good that you notice this before it gets worse...

Your description makes me worry. If you have a strange, unknown screeching noise coming from the right rear wheel and now there is a burning smell. Please stop using it and have it looked at as soon as possible. There are a few things that could be the cause of these symptoms. Wheel bearing failure, seized brake caliper or frozen caliper sliders, damaged brake line, seized E-brake cable, or improperly installed brake-pads. In any case, if you continue to drive this car, with these symptoms. You may cause a break-down (requiring a tow), or cause a fire. Let me know if I can answer any other questions or how the repair goes, good luck.

The brake calipers would not cause noise. Check the wheel bearings.

this is a front wheel drive car. so the only things in the rear wheel area that typically make noise would be the rear brakes or the wheel bearings. Because you notice it more when braking i suspect the brakes are worn out. inspect the brake pad wear on both the inside and outside pads, if they look ok, you would need to investigate further for a possible wheel bearing or hub issue.

Any noise from the rear axle can be coming from many different causes, depending upon exactly what you are doing when the noise happens.
Check all mounting points and make sure none of the bushings are loose and that all hardware is tight. Jack up both rear wheels and check for play in the wheel assemblies, Check for any up and down play in the pinion yoke and excessive turning distance in the pinion itself (how far you need to turn the pinion before the rear wheels begin to turn). Also check the driveshaft universal joints for rust or excessive play. You need to find what is worn or broken before you can fix the problem. If you can duplicate the noise while standing still, have someone look underneath while you get it to make the noise. You may actually be able to see what is moving.

check ur u- joints and brakes

wheel trim?? the jag badge in the middle on a alloy wheel or the lead weight to balance the wheel on a steel rim

Might want to check your camber adjustments and look into shocks and struts. They could all be worn out but prolly the camber is off causing abnormal road noise and abnormal tire wear

Wheel bearing is the most likely cause. Prob a 1.5-2 hour labor rate job in the shop.

Four wheel disc brakes or drums on rear?