Timing belt/water pump

Seven ways to pinpoint that high-pitched, whining noise

www.losaltosonline.com/special-sections2/sections/on-the-road/45742-

Oct 2, 2013 - I recently had new fan belts installed after hearing a high-pitched, ... Do you hear the noise when the engine is running and the vehicle ... Just replaced water pump (and timing belt) yesterday and squeal ... When driving it make a noise but change out and caught speed the noise is coming from driver side.Missing: 1999 ‎plymouth ‎breeze

What is causing that irritating noise? ' DSMtuners

Troubleshooting Strange Sounds Coming from Your ...

www.dummies.com/.../troubleshooting-strange-sounds-coming-from-yo...

You hear a high-pitched squeal that stops when you shut off your engine: Readjust or replace the belt. These belts should have about half an inch of play and ...Missing: 1999 ‎plymouth ‎breeze

All though the solutions above are possible, the squeal usually just means one of your belts is getting going bad.

Pop the hood, and turn your belt slightly (the thinner one, not the timing belt) and see if the bottom side is looking 'glazed' or if there are intermittent cracks. You may need a flashlight to determine this.

If the belt is bad, some times you can just loosen the alternator and get the belt off. Some cars require a lot more work. Don't be surprised if the mechanic tries to get you to replace the water pump at the same time when you take the car in to get the belt replaced.

Depending on your financial situation at the time, it may be a good idea to replace the water pump if you have gone 5 years or more on rhe current one.

Hope this helps, all the best to you,
Kerry Hostetter

Have you checked the tension on the alternator or any other belt drive in the engine bay?

Check the serpentine accessory drive belt and the drive belt pulleys for out of alignment issues. Also make sure the belt tensioner is functioning correctly.

Your water pump may need a lubricant. Water pump lubricant is added to the radiator.
When the weather is warm enough, and the engine runs hotter, then the thermostat opens more frequently, the lubricant will mix with the radiator fluid and circulate through the sysem lubricating the water pump.
I had squealing problem after changing the serpentine belt.
Tried changing idler sprocket, no difference.
I added the lubricant to the radiator, unfortunately the weather was cold, and the lubricant did not mix well with the radiator fluid, and did not circulate well do to cold weather and short drives.
Once the weather got warmer and the thermostat opened more often the squealing stopped.

Th cam shaft pulley has to be turning if motor running. Maybe fan is equipped with clutch that is bad.

Slipping serpentine belt. Spray it with belt conditioner.

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You need to check the pulley alignment of all the pulleys, they should all be in a perfectly straight line, otherwise the belt will squeal

i have the same problem, changed the alternator, pulley and all that, it happened after i had the intake changed out due to the egr problem, if yours hasn't been changed id look into it before it goes, better sooner than later sorta things...