The belt will not generally squeal, but the water pump often makes a "Scrapy-scrapy-scrapy" sound.
It will squeal if the bearing goes out-the most typical failure or lock up, throwing the belt or leak-from the front area of the pump.
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.
It could grind, squeal, squeak, or make no noise at all.
i had a similar problem on a 1990 Chevy 305 with a SERPENTINE BELT. I had replaced my power steering pump, when all was said and done it threw the belt off twice. the pwr steering pulley was mounted correctly THE SHAFT WAS WALKING OUT from the pump enough to cause a loud squeal then there goes the belt. I had a defective pump. i know C.I. is way smaller then mine but i hope this helps
That is simple... the one for the water pump... the belt goes around the crankshaft, over the water pump and around the alternator.
Loose belt? Low fluid? Bad pump?
The pump bearings may be going bad or the belt could be slipping. Check to see if the belt is too tight or too loose.
the timing belt can cause a water pump to go bad if the belt is on too tight, because that will put stress on the bearings making it wear out rather quickly.
I had the same problem, so I took the belt off and washed it in soapy water. I then took a wet, soapy cloth and wiped off all of the pulleys. The squeal in my Aerostar was caused by a leaking power steering pump, which leaked fluid on the belt, causing it to slip and squeal.
There is afew things that can make it squeal like the belt is worn and old or power steering fluid low or pump going out.
Yep, it could be the water pump or maybe the alternator. If a bearing is starting to go bad on that alternartor, it will make noise. Usually if a water pump is going bad you'll notice moisture coming out of the weep hole; but only if the seal goes bad; the bearing can chirp or squeal; take the belt off the pump; does the noise stop? turn the pump by hand does it feel loose and gritty as you turn it? if it's ok it should feel stout with no gritty feeling.
This is a non-interference engine. If the belt breaks you will be stranded but no damage will occur. Replace the belt every 60,000 miles. The cam belt drives the water pump, so I suggest you also replace the water pump at the same time you replace the belt, to avoid future labor costs when the pump goes bad, which it will.