2016 GTX 155 has started to make a humming or whining sound

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mikewest57

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27 Hours could this noise be related to the impeller / wear ring or bearings or both. Doesn't seem to have lost any power or top end, so far.
 
Imagine a wheel bearing going bad in your car only that the wheel is spinning at 100 rpm when you hear it. Well that sound sped up to 3000 rpm sound alike a humming. Pull the pump and check the bearing. You will likely find that being the issue. I've found they make this noise for a little bit before doing damage. It's usually a sign of bad seals or corroded pimp shaft and water getting into the pump
 
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