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What vehicle is this on? Do you know which belt it is? The most common reasons for a 'squealing' belt are either a loose belt or a worn old belt. It squeals because it is slipping on the pulley wheels. Get it replaced as soon as possible as a worn belt won't be spinning the alternator fast enough to charge the battery correctly. A new belt is usually cheaper than a new battery.
50k isn't new but also isn't that high a milage , how old is the belt ,as age as well as mileage are the factors when replacing belts , chalk dust or french chalk , which are the same thing , thrown onto the belt just as starting should stop the squeal , the squeal is caused by the inner side of belt that runs around the pulleys becomes shiney and cant grip as well as it used to
belts squeal for only 2 reason
it's bad. the belt.
or the accessorym it drives is Seized.
i guess you never head of a 5buck stethoscope
and listen to the accessory bearings, ah, alternator front and rear
i hear, front crying for help. easy as child play.
sold everywhere cars parts are sold.
there is no need to guess, , answer use tools.
this was true in 1920 and now, belts then and now all can squeal.
in the old days we had many belts and could drop them
then comes, SERP belts. one for all.
we dont have 1.3 swifts here, so cant see belt routing.
if this has an automatic belt tensioner on it this sounds like the tensioner is weak and needs replacing. a weak or bad tensioner does and can cause belt squealing and can throw the belt alignment off causing your problem.
Belts normally squeal when they slip and they slip because they're not tight enough or in the case of a V belt because they're too narrow. Make sure they're tight enough and they're the right belt.
You have a loose belt on the A/C. On most new cars that is one big belt that drives everything on the car. If when you look at the belt on the grooved side, do you see cracks on the grooved part running across (from side to side) on the belt? if so, it is in bad need of a new belt. A new belt should stop the squealing noise. While you are replacing the belt also check the belt tensioner to ensure it is in good working order.
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