Question about 1993 Ford Probe

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Why does the alternator/ water pump belt keep breaking? I get a squeal then it shreds.

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You have a pulley locking up that is breaking belt. with belt off spin pulleys by hand and feel for anything abnormal. wobbles, sticks or bind. due this for all pulleys ran by that belt u will find your problem

Posted on Nov 19, 2009

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My car keep on breaks alternator belts and it also makes this loud whistling noise. I've put on a new water pump, 3 alternators and several alternator belts


make sure that the pulleys of all the driven equipment are in alignment and not at a bit of an angle to the axis of the drive belt
To break belts something is not lined up properly or something is not turning freely

Dec 31, 2015 | 2000 Mazda Protege

1 Answer

My mazda protege keeps breaking alternator belts. I've put on serval alternator belts, a new water pump pulley, and 3 alternators and my is still breaking belts


Replace belt tensioner, any other pullys, I worked on ? vehicle where the pully would spin but would stop every so often.

Dec 31, 2015 | 2000 Mazda Protege

3 Answers

Squealing


My first impression would be the serpentine belt is worn ...specifically it has "glazed" and stretched so it no longer has the ability to effectively grip the drive pulleys it spins. Typically when the serpentine belt loses "traction" it will squeal as it slips on the metal pulleys of the accessories it is designed to operate. There also may be a problem with the the tensioner ...a device used to keep proper tension on the serpentine belt. This is an easy and relatively inexpensive repair ...probably cost between $100 and $200 ...depending on whether the tensioner needs replacing.
You really need to get this fixed. If the serpentine belt fails ...it breaks or comes apart ...you will lose power steering and the water pump as the two critical accessories the belt operates. Obviously the loss of power steering can make the car difficult to drive and the loss of the water pump will cause an engine overheat condition fairly quickly. The A/C and alternator will also drop off line but these aren't as critical as the steering and water pump.

Jun 24, 2014 | 1998 Pontiac Bonneville

1 Answer

95 jeep grand cherokee. Alternator charges intermittently only after engine squeals, belt NOT loose.


if the belt squeals why not fix that first? ?>?????
that is correct, if a shared belt resource, is seized it will cause any belt to slip and the alternator to stall , after all they are SHARED.
some alternators do have the regulator in the ECU. for sure.
why guess, tools are cheap. wana buy a tool.>
did you hand spin all shared pulleys to feel for seizer or use a $5
stethoscope on each for load bearing noise, so simple to do...
they sell this tool called a Laser RPM tool, point and shoot.
its cheap,
The correct RPM of the ALT is publised in the FSM and you can measure it.
i take my crank pulley diameter and divide it by the alt pulley diameter.
eg: one is 8" other is 3"
so the ratio is 2.66 :1
so at engine RPM of 800 x 2.66 you have 2128 rpm on the alt.
basic mech, 101.
so if the tool shows way less than that, then bingo, the pulley is slipping, BTW2 not all slips squeal. so.... the tools rule the world of mechanics.
here is the cheap tool i use to find things with wrong RPM.
i put a dab of liquid paper (walfart) on any pulley and this tool
picks it up and bam RPM exactly.
no hands getting caught in belts etc, no danger.

so recap
belt new.
all things on the belt, feel good spun
all things on that belt , sound good $5 stethoscope.
tension on belt , at spec.
if still bad out comes Mr
DT22334A
http://www.amazon.com/DT2234A-Tachometer-chemical-automobile-airplane/dp/B00BKUNOAW

in the real world , sometimes THINGs only SEIZE on the fly.
picture in mind a dry bearing that keeps dragging more as it spins faster. bingo. its bad. and gets worse at higher RPM and soon it
will seize 100% and throw that belt or shred it.

I cant pin down where it squeels
why not drop the belt (cold engine if shared with water pump)
and now it dont squeal.
easy huh, no belt , no squeal.
i truly hope this helps.
there is no reason to guess, besides a new unglazed belt.
ever.

Mar 18, 2014 | 1995 Jeep Grand Cherokee

3 Answers

My chevy 2000 malibu is shredding through its serpintine belt ive replaced the tension pulley and the power steering pulley and bought and replaced a belt what else can be wrong one of the pulleys i think...


Yes that is very likely it. Since you changed the belt, you should know - Is it the tensioner pulley ? Otherwise it is probably the water pump. The problem is the bearings.. If the bearings are locking up, the resistance will shred the belt quickly.. the part needs to be replaced is the bearings. Waterpump bearings are built in to pump. Change whole thing. (may need to transfer the pulley)

Sep 02, 2011 | 2000 Chevrolet Malibu

1 Answer

Just wanted to know what the component was next to what i think is the alternator, that has a belt running around it. The belt has cut into the plastic cover and is just about to snap. Also there looks to...


if the pulley wheel isn't driving anything it's likely the tensioner. if it has a reservoir it's likely power steering. a pulley driving something inside a "cover" would be water pump and the largest pulley would be your crankshaft pulley (at the bottom of the motor). have a look at the pulley for the water pump. if water is seeping out of the front of the pump it's time to replace it. the last time a belt shredded on my vehicle it was a seized tensioner (it was squealing first)

Mar 01, 2011 | 2000 Subaru Impreza

2 Answers

Waterpump/alternator belt keeps breaking on 2000 mazda protege. belts squeal all the time then break


do you have a siezed tensioner pulley that could do it . remove the serpentine belt and check the idler puller, then the alt if it's siezed , the water pump pulley should turn freely also check what is siezed and making the belts squeel something's not turning.

Jan 29, 2010 | 2000 Mazda Protege

1 Answer

99 Altima with 190k miles warbling noise


It sounds like your water pump is going it usually vibrates throughout everything if it was your alternator it would show signs with your power the easiest way would to take your belt off remembering the belt route and spin the alternator pulley and the water pump pulley to see if they spin freely without noise

Jan 26, 2010 | 1999 Nissan Altima

1 Answer

Belt between water pump & alternator squealed and popped off - di


You could have the wrong size or the serpentine belt was routed wrong. Double check the routing and the length of the belt, the other thing to that is know to happen is the belt tension pulley has gone bad and needs to be replaced. Recap, check the routing of the belt, belt length, tension pulley for any damage. Good luck and hope this helps.

Jul 16, 2009 | 2002 Mazda Protege

2 Answers

Serpentine belt keeps coming off my 1992 Chevy Cavalier


Hi Chris. I would check all the pulleys with the belt off and make sure the alternator, ac pump, power steering pump are all turning fairly easy and that the pulleys havent come loose and started wobbleing alittle.

Mar 15, 2009 | 1994 Chevrolet Cavalier

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