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Purring water pump?
I sometimes hear a repetitive "purrrrrr" coming from near the coolant reservoir. It purrs for about 5 seconds, pauses for about 10 seconds then repeats. It's not the nasty fuel pump sound I've heard on various videos. Sounds more like a loudly purring cat. Haven't yet correlated it to any particular temp or driving condition.
Is this normal behavior I just need to become accustomed to?
2009 N54 w/ 34K miles.
Here, kitty kitty...
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