There is a squeal coming from the alternator Is this an alternator problem or serpentine belt problem tightening problem or a pulley bearing?
Remove the serpentine belt and check the belt and pulleys for damage. While the belt is off, turn the alternator by hand listening for the noise.
On Lexus ES 300 Pulley that is located beside the engine and is on the serpentine belt with the alternator is sqealing what is the problem?
If you're describing the idler pulley or the tensioner pulley, it's probably a bad bearing. Pulley bearing failure is common and relatively easy to repair. Remove tension from the serpentine belt then turn the pulley back and forth with your fingers. It should make no noticable noise and should turn smoothly. If you can hear any grinding noise or if the pulley feels like the bearing is grinding, replace it.
To diagnose a noisy pulley, remove the serpentine belt and turn all pulley's by hand. Try to notice which of the pulleys make a grinding sound or feels loose. Even an alternator bearing can sound like just another bad pulley bearing, so don't assume that the alternator is okay. A bad bearing often feels like there are little grains of sand inside when you turn it manually, but sometimes it's difficult to detect the problem…
I am having the same problem with a 99 Protege. I have changed the alternator and aligned/cleaned the pulleys and the problem persists. I replaced the alternator, on my 1997 Mazda Protege, seven times before someone figured out why the serpentine belt kept breaking. It was the belt tensioner! It had to be removed and rebuilt. Now it is working like a charm!! And I havn't had to replace the alternator in over 3 months!!!!
If you smell rubber burning and then shut the engine off and it wont start again what could the problem be on a 1995 V6 Ford contour?
How do you adjust the serpentine belt tension on your 1992 town car which you think is causing engine to die when you turn on heat and fan?
Your battery light has started coming on and you have a belt squeeling is the two a related problem 1997 geo prism?
Yes. Have had this happen to me. A serpentine belt is what brings power to both your alternator and your power steering pump. If the alternator isn't turned by the belt, it can't produce electricity, and your engine will stop. If the power steering pump isn't turned by the belt, it can't move fluid, and your power steering will quit working (note that you can still steer in an emergency, but it's VERY tough). Hope…
02 mountaineer with a bad noise from the belt you replaced the belt the idler pulley and the tensioner pulley any ideas?
If you have replaced the belt, tensioner and idler pulleys, then the problem could be the water pump bearing, alternator bearing, camshaft bearings, power steering pump or any of the items attached to the serpentine belt. You may try to isolate the sound by listening with a length of rubber hose and place it near the areas where the 'noise' you hear may be emanating from. Just be careful not to get the hose too…
You've replaced the rear driver wheel bearing assembly it still seems to be going out What else can be the cause to your bearing problem?
Assuming this is a front wheel drive model, it could be any of the following; Rear wheel alignment off Warped rim (even slightly warped) Bad Rotor/drum Incorrect insertion of bearing race Over tightening the bearing/(rotor/drum) nut Bent spindle Bent or worn trailing arm or bushings. Bad quality Wheel Bearings.