Question about 1997 Mazda Protege

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Alternator belt squeals under load

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.

The car has been super reliable other than this.

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Check all the pulleys for alignment and wear, Also check the alternator output (make sure it is not always under load) hook up and ammeter on the positive) what

Are you running a large stereo? if so this can cause this especailly if the large stereo is not fused

Posted on Feb 06, 2009

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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.

Posted on Jan 21, 2010

  • NewGuy0408 Mar 24, 2011

    i have the same problem.... car works without battery once started, but *** soon as i connect the battery the belt start to squeals and 'eat way' very rapidly until it break which usually takes about 15 mins.... can any one help me out here??

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