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Hi, Fan belt squeal is typiclly a belt is old and getting worn which gets a bit hard and less pliable and begins to slip some creating the squeal, you also need to see if the belt is loose which also can cause squeal, if it's loose then tighten it if it's ok and squealing the the rest applies. You can add a belt dressing on the groved side of the belt but ultimately you should replace the belt, we used to get extra days out of belts on farm equipment by adding belt dressing but that was only so we could run until we could replace the belt. This goes back more than 50 years of this stuff. Good luck. Steve H
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∙ 15y ago
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What causes the fan belt in a 1993 tracker to squeal?
It can be several things, either by themselves, or in combination. 1) the belt has dried up and isn't as grippy any more. This causes it to slip and squeal. There are sprays available to restore grip on belts which might help. 2) the belt has stretched a little, which causes it to slip and squeal. Retension, usually by adjusting the alternator position and it should be OK. 3) one of the auxilliaries(alternator, power steering pump, water pump) is about to seize. If it's harder to rotate the belt will slip and squeal.
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The alternator belt on a 1993 Nissan 300ZX will typically squeal if it has excessive wear or it has become lose. This provides a good opportunity to replace the belt before it complete fails.
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A loose belt. Most likely the alternator belt, if it doesn't squeal when you make a sharp turn.
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Look to the alt. belt. It may squeal under load.
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A belt that is too tight will cause a squeal on a Kia Sportage. To resolve this issues just loosen the tension on the belt.
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Change the belt
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Sounds like a squeaky belt to me. Did your car sit out overnight or get wet. Does it go away when warmed up. Almost always the belt.
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Squeal alternator in 1996 Dodge Grand Caravan?
Very often it is not the alternator, but the belt that squeals. This can be checked by rubbing a little soap on the belt, if the squeal goes away, you know it's the belt. The belt may squeal for a number of reasons: the belt is new, the belt is old, the belt tension is too tight or loose, the belt is cold (the squeal goes away on it's own when it warms up). Some belts just squeal for no discernable reason, but there are 'belt dressing' sprays available for sale that sometimes help. Always check the belt before spending a bunch of money on a new alternator that may not be needed.
