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Because the alternator puts a load on the engine of several horsepower, the belt must be very tight. However, if it is too tight, the bearings of the alternator shaft will wear out quickly. To tension the belt properly, adjust until there is about 1/2 inch of play in the center of the longest span. If this does not stop the squealing, the belt may have been glazed from being too loose, and needs to be replaced.

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โˆ™ 2007-03-02 04:36:58
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Q: How do you adjust the alternator belt in a 1997 Honda Accord to make it stop squealing even when it seems to be tight enough?
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How do you replace the alternator on a 1990 Honda Accord?

Remove the upper through bolt of the alternator, remove the bottom bolt of the alternator by unscrewing the nut. Slide the belt off pulley. Install the new alternator. Replace and tighten the bolts (You will need to use a torque wrench to tighten to the proper foot-pounds of torque. You can find the torque specs for you bolts by going to a Honda forum). Adjust the tension bolt until there is enough tension on the belt (if not enough tension you will hear the belt squeak when you stat your car).


What would cause a squealing sound in a 1997 dodge caravan. It squeals while driving and while idling. We put some lubricant on the serpentine belt and the squealing momentarily stopped.?

The alternator may be out of alignment. Put soap on the inside of the belt and it will turn the grooved part white enough to be able to see if the belt is not running straight. If the belt is all aligned on the lower pulleys and then jogs off to the side the higher it gets, it's the alternator in the back of the engine. There is an adjustment on the bracket that connects to the intake manifold, but most likely you'll have to take the alternator out and adjust the swivel part too. There is a spacer in the swivel part on the bottom of the alternator that you can hammer one way or the other. I had to put in a couple of washers to make up for the space on the other side. I hope this helps.


Why is your car squealing before it is started?

It Could Be Your Serpentine Belt too tight or not tight enough.


Why is there a loud squealing noise from the engine during cold starts as well as accelerating on a 1995 Mazda MPV?

It's probably the belt slipping. Check for belt tension. When an engine first starts the alternator works harder to recharge the battery. During that time, the alternator is harder to turn and if the belt isn't tight enough there can be some slipping between the belt and the pulley.


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If the bearings in the alternator get bad enough it can lock up.


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Alternator is not making enough power.


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Will a car start if the alternator is going out?

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What does it mean when the battery light comes on in a 1991 Honda Accord?

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