Might be some bad bearings in your alternator, PS, AC, or water pump. Usually due to belts being too tight.

 

when i had the timing belt replaced the dealer told my the AC belt looked bad but the rest of the drive belts looked new. Should I start there/

 

I would, won't hurt any if you are wrong.

 

I also have the same thing... never worried about it... I thought it was because the new belts, its been there about 10K now...

 

well thats what i thought too but i have had a couple oil changes since then and have become worried.

 

At 160,000 miles, my car did that.. It's like a bearing noise.

 

what you need to do is go to pevemart or somthing like that and get a stethascope with an attachable rod on it... forgive the spelling... much eayser to pinpoint then

 

the second video sounds like low PS fluid causing the pump to whine.

 

Is that supercharged. My uncles truck whined like that because of the Alternator. He put a brand new one in and it did the same thing. Probably a bad bearing in the PS or the Alternator. As stated check your fluids first.

 

defiantely not SC. fluids are A OK. it does it louder with the lights on i just noticed that.

 

Might be a bad alternator. Put the lights the fan and every other electrical thing on. If it does get louder I would start there.

 

ok, so the sound does get louder with more electrics on. so you think i could just loosen it up or is it just a matter of time before it goes? 70K miles.

 

I dont know but someone should be able to chime in.

 

HAve you checked belt tension? Have you physically looked at the belts to verify their condition?

 

the belts look just fine. they have a little less than a quarter inch of play in them. no cracks or anything.

 

Remove the alternator belt and start up the car , if the noise is still there remove the A/C belt and run it again. Power steering pump can be tested the same way. Engine stethescope would make analysis much quicker.

 

ive got the same noise on the second vid. my water pump HAS NOT been replaced yet and im at 105k so im begining to wonder if thats it.....i havn't had a chance to really check into it with a steathescope but i think ill do that next weekend..... then again ive heard alternator bearings take a dump and sound like this on a few diffrent cars.

 

Bearings can make all kinds of funny noises on their way out.

Removing belt driven accessories' drive belts is THE way to find out which one(s) are making noises. While the belts are off you can rotate the pullies manually, and this is also very informative. All the bearings should spin quietly by hand, and there should be *no* roughness to them at all.

My water pump ran quietly at 120k, but the bearings were a little "crunchy" when turned in one direction slowly, by hand.

My alternator was squeaking sometimes, and the bearings were VERY smooth... too smooth. An alternator should have a little resistance to turning (should not be able to spin the pulley and watch it go for 20 seconds). If an alternator's bearings are going out and they still spin smoothly, you may very well have time to save up to buy a new one or have yours reman'd. If they are crunchy, you are driving on borrowed time, but it still might last quite a while.

My a/c belt tensioner bearing was VERY rough, and sounded like valvetrain clatter, and when the engine was shut off it sounded like a big diesel rattling to a stop.

Somewhere in my transaxle a needle bearing lost a bunch of rollers, and it chewed into the gears a little and grumbled on deceleration.

Bearings failing can have all sorts of symptoms. You have to check them individually to be sure what is making what noise.