Question about 1987 Jeep Wrangler

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Squeeking noise every time i start my jeep it squeels and the charge meeter goes down...it raises after a few minutes and then i can drive but when i stop it starts again....any suggestions?

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"Sounds" to me that the Bearing on the Alternator (to which the Belt Pulley is attached) is worn out.
Remove the Belt and check for play in the Pulley, if ANY wobble replace the Bearing or the Unit.
As in the above post: "Luckily an Alternator is easily checked and if necessary, replaced."

You might have a Belt Tensioner failing as a squeal/rumble/vibration is indicative of a failing/failed Bearing much like a Water Pump.

Posted on Sep 13, 2008

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Hi ncharron,

The first thing I'd check would be the belt(s) (tension, fraying, damage).
Second and most likely source of the problem is the alternator.

If you have someone to recruit as a helper, have them start the engine while you listen for the source of the squeel.
If you have a meter available, check the output voltage. From the Alternator.

The dropping voltage on the gauge is the key pointer here. It should maintain above +13.5VDC with the engine running.

The Squeeling is not a happy noise. Luckily an Alternator is easily checked and if necessary, replaced.

Let me know what you find out. That will tell us how to proceed.
Mike

Posted on Sep 13, 2008

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