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www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-water-pump-pulley

Typically this system runs for years with routine service and maintenance including replacing fan belts, water pump belts and flushing the radiator fluid. However, one of the more common mechanical parts that can fail sooner than later is the water pump pulley. The water pump on any vehicle uses a system of belts and pulleys to operate.

www.youtube.com/watch?v=xCn92RRi1JM

130k-ish miles and water pump has decided to give up the ghost. Hope this helps you diagnose a bad water pump that has no apparent leaks... I did replace the water pump and the noise went away.

www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-water-pump

Symptoms of a Bad or Failing Water Pump. Symptoms of a Bad or Failing Water Pump Common signs include coolant leaks at the front-center of the car, loose water pump pulley, overheating engine, and steam coming from the radiator. ... I was on my way home but as I'm driving I hear a loud whining noise.

www.reference.com/vehicles/kind-sound-bad-water-pump-make-9940c805ec13fcbc

Rubbing, whining and grinding noises coming from the water pump are signs the bearings are about to fail. If a water pump is making any kind of noise, it means the pump is likely starting to wear out; a good water pump shouldn't make any sounds at all. The most common sign of a failing water pump isn't noise but what is called "weeping."

itstillruns.com/tell-cars-water-7679.html

When the bearing supporting the water pump shaft fails it can begin to make noise. You may hear a grinding or knocking noise from a failing water pump bearing. Remove the belt that drives the pump and spin the pulley by hand, feeling for roughness or looseness in the shaft. Replace the pump if any of these signs are evident.

forum.ih8mud.com/threads/what-does-a-bad-water-pump-sound-like.62343

As far as I know, a failing water pump doesn't make any noise. It will seep though from the "weep hole" under the pump. You'll notice a puddle of coolant after you stop the truck (wait five minutes). Go to the store to buy beer, come back out, look underneath - if there's a puddle of coolant, your pump is shot.

www.autorepairsutah.com/blog/water-pump-failing-indicators.php

Another indication of a failing water pump that is pretty straightforward is the temperature gauge rising to the red zone. While this can represent a few different cooling system problems one of them is a failed water pump because it is no longer able to pump the coolant that keeps your engine cool. Grinding Noise

www.gatestechzone.com/en/problem-diagnosis/cooling-system/water-pump-failure-signs

The water pump is the heart of the engine’s cooling system. It is the water pump’s job to constantly circulate the coolant throughout the entire cooling circuit and thus regulate the coolant flow rate. Water pumps are most commonly driven externally by a pulley/belt combination. A bad water pump can cause an engine to overheat.

www.wikihow.com/Tell-if-a-Car's-Water-Pump-Needs-Replacement

How to Tell if a Car's Water Pump Needs Replacement. Your car's water pump is an important part of your vehicle. It is the part that continually pumps coolant to your vehicle's engine so that it doesn't overheat. A leak or a faulty bearing...

www.youtube.com/watch?v=4tRWhrPKhiE

Video tutorial on how to diagnose a faulty water pump on a vehicle. This video consists of two different areas which include gaskets and the bearing. Water pump models do vary between vehicle ...