I have a '97 Protege with 1.5 motor that has trashed five belts and three alternators in the last eight months. The belt squals under electrical load, at which point I can tension it slightly, but that only lasts about a week at which point we repeat the squeal/tighten sequence until I snap a belt or burn-out an alternator.
I had the same problem with my daughters 03 protege. I went to Dayco belts and no more problems. Over tensioning will not solve the belt squeal it just causes more problems. Go to the Dayco website it will explain it better than I can.
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The 97 Corolla has three accessory belts. The alternator belt is the one you see when you look down on the passenger side standing near the front of the engine compartment. If fits over the alternator and the engine pulley. The belt beneath it is the a/c belt (if the car has a/c). It fits over the engine pulley and the a/c compressor. The power steering belt is toward the rear of the engine compartment, on the same side. It fits around the engine pulley and the power steering pump.
Replacing the alternator belt is not too difficult. Standing in front of the car and facing towards the rear, loosen the locking bolt under the right side of the alternator. Then loosen the alternator hinge bolt on top of the alternator. Now you are ready to loosen the alternator belt tensioner adjustment bolt, accessed under the alternator from the front. Turn the tensioner until the old belt is loose enough to remove, then turn it further so that the new belt will go on easily. Replace the belt and re-tension until you have about 1/4 in. to 1/8 in. of play in the belt, tighten the lock bolt and the hinge bolt, and run the engine. If the belt squeals it means you need more tension, but do not overtension. Recheck it after a few days.
do you have a siezed tensioner pulley that could do it . remove the serpentine belt and check the idler puller, then the alt if it's siezed , the water pump pulley should turn freely also check what is siezed and making the belts squeel something's not turning.
You can't fix a broken alternator belt, all you can do is replace it. Go to autozone or advance or any other chain parts store, get your replacement and put it back on. Loosen the alternator and adjust so the new belt will go onto the pulleys, then put tension on the belt by adjusting the alternator so that you have about 1/2" of play in the belt when you pull up and push down on the belt. If after you tighten and start the car the belt squeals, you will need a bit more tension in order to quieten it down and insure that it is not slipping. Good Luck...Hope this is helpful!
The alternator is loading up too much for some reason.
Had the same issue on my friend's 2001 Mazda Protege. Turned out the voltage regulator in the alternator was faulty. Had the alternator rebuilt. A week later, it acted up again! There is apparently another issue, but I have not been able to figure it out.
Unfortunately, I don't have a clear answer for you, but, one's thing's for sure. Mazda has to stop using crappy Ford electrics in their cars.
is your belt slipping? You may have a bad tensioner pulley. Check all pulleys make sure they will spin and not lock up, if they feel really tight or after rotating them around several times they get tight replace
While installing a used belt just to get the truck home, I discovered that the pulley-bushing on the power steering pump was worn. This allows the pulley to move fore and aft, thus throwing the belt occasionally. What I learned from all of this can be catagorized as very basic troubleshooting. If you lose a belt that looks to be in good shape, then before you replace that belt, check all of your pullies and devices(water pump, alternator, power steering pump, AC, etc.). Look for pullies that can move or wiggle. And, look for lose or missing mounting bolts on the various devices. A loose or missing bolt may allow that device to become cocked at a slight angle, instead of remaining straight and true, thus throwing the belt.