Squeaking when put on gear and when idling or near to stop occasioanlly

I need you to try something. When it is making the noise, take a small cup of water and pour it on the serp belt. See if the sound changes or stops for a short amount of time. Make sure you protect your eyes and have old cloths on. It will spray water back at you. If it changes, the belt tensionier may be getting weak or the pullys could be glazed.

Let me know what you find.

I wanted to add one other thought. Keep in mind, when you first start the engine in the AM, the alternator has the most load on it for the day. If the adjuster is weak, that added pressure could be causing the noise.

Thanks for your reply. I poured some water after I heard noise this morning and noise was gone for few seconds. I did it few times and squeaking sound was OK for a while. This usually does not happen after I drive for a while if I stop/start my car, and happens only on low RPMs or near to stop or waiting at the traffic lights. A mechanic last week said it was belt tensioner, after I chnaged the belt, and after mechanic adjusted tension (tensioner?) it was OK for few days. Thanks

I think either you have a weak belt tensionier or the pullies are glazed.

I took my car to another mechanic and they tightened belt pensioner, both of them. It was OK after initial tests but real test will be following AMs and after long parking. Thanks

remember that a new belt can stretch and need readjusted at first. However, that should stop. My guess is that what happened.

Let me know the outcome.

I am having the exact same problem, but I have checked the pulleys for roughness or play and all of the pulleys seem fine. Could it just be that the belts need to be extra tightened?

It could be a belt issue. Make sure the belt isn't glazed or loose.

The belts are brand new and I tightened the belts

Check tension. You should have about 3/4 of an inch play in the belt.

00' Mazda Protege. Belt squealing. Can you tell me what can cause this. I have been told it could be the bearings in the alternator or the power steering pump locking up. The belt breaks after a while. In a 6 month period I have gone through three belts.

I have the same problem in my 99 Protege. I replaced the altenator because the bearings were going out and it happened again. I was told that the altenator was probably not lined up correctly. I lined it up and I'm still having problems. It only squeals in low gears and when it's cold out. I'm on my third belt in three months

This is a common problem with Protege's that have both aftermarket alt. and belts. Alot of aftermarket alternators have the wrong width pulley on them from the factory, also alot of aftermarket belts (certain ones that are good for a year) stretch too much causing the belt to come loose and squeal.

Have you tried an OEM belt on this car....and check the alt. pulley on your car now vs. the old alt (if you have it still)

Cosmo...Mazda Tech