Squeeking and squealing 2012 harley trike

A grinding or rumbling noise can also be symptoms of a wheel bearing or constant velocity joint in a driveshaft. A worn wheel bearing can also cause a 'whistling' sound (as can a worn CV joint).

A grinding noise with brakes is either worn pads causing metal to metal contact on the brake disk/rotor, or the brake backing plate catching on a spinning rotor ... or a loose/missing anti squeal brake shim (they stop the pads from rattling and vibrating).

However, as you say a mechanic has looked at the brakes and can't find anything wrong .. I think I would begin to suspect a wheel bearing or constant velocity joint on the driveshaft (front wheel drive cars).

Joe, do you mean a bearing track?
If so, a bearing -or track - usually makes a grinding or knocking noise, not a squealing noise.

If a car stands for a long time the brake rotors can corrode a bit and the pads can stick. Sometimes, when the car is first used after standing, you may hear a rubbing or squealing noise from the wheel. That's the pads sticking to a rusty rotor. The noise may wear off after a few miles when the pads 'polish' the corrosion off the rotor.

The other thing that causes squealing from a wheel are the brake shims. Try cleaning things first.

Rear Drums & shoes should be changed at the same time. The same goes for the front pads & rotors. Usually the drums & rotors are pre-cut but I ask at the counter if they need cutting because I have ended up with uncut squealers once or twice and found the drum needed to be re-cut due to minute warp-age. If the grinding is the same as before the brakes were changed then all th e brakes need changing not just the ones you thought needed it. Quiet pads & brakes have a beveled edge instead of an abrupt 90 degree angle. Ceramics tend not to squeak. As for un-glazing, in the old days we ran 60 grit sand paper along the wear surface until it was sufficiently scuffed to stop the squeal. It didn't work for very long & usually the squeal worked itself out with wear in a week or 2. good luck.

Could be just the belt... if not the belt then most likely the alternator bearings are bad.. you can test this by removing the alternator and turning it by hand and listening to the rear for squeeks or a grinding sound.. good luck

frt wheel bearings make that noise, probably the problem replace both frt hubs and will more than likely take care of the problem

For squeaking problem,the help links are provided below.Click the link below to go through the procedure :----squeaking under hood? http://repairhelpcenter.blogspot.com/2012/01/clutch-squeaking-under-hood.html
----------Squeak and grinding sound is heard when brakes are applied? http://technoanswers.blogspot.in/2012/02/squeak-and-grinding-sound-is-heard-when.html
-------------Clutch squeaking? http://repairhelpcenter.blogspot.com/2012/01/clutch-squeaking-under-hood.html
---------Squealing at start up on car? http://technoanswers.blogspot.com/2012/01/squealing-at-start-up-on-car.html
-----------This will help.Thanks.

Usually brake squealing is caused by a contaminant getting on the rotor and the pads. This includes almost any chemical other than water. Most of the time the culprit is spray wax that is used on the bike with the overspray getting on the rotors. That tire gloss stuff will do it as well. Once the brakes are applied and the contaminate gets into the brake pads, about the only way to eliminate it is by replacing the pads. Make sure you clean the rotors with brake parts cleaner and it wouldn't hurt if you can rough the surface of the rotor a bit as well.

Good Luck
Steve

what type of noise squeal or growl or grinding if it is grinding or growling i would look to wheel bearings if it is a squeal it is the material the pads are made from

If its squealing from the wheels at low speeds with your foot OFF the brake pedal, check the brake pads. There is an EARLY WARNING SENSOR that's squeals like chalk on the blackboard when the brakes get low. Could be totally off on this one , but hope it helps.

It most likely is a worn brake pad. Clutch will tend to slip with out any squeal since it is a wet clutch. Try applying the front brake then the rear brake to determine which is squealing. Pads are about $45.00 per wheel, I just did mine friday.