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Originally Posted by Reflex_NL

I initiated the venting cycle as a check to see if the pumping is working correctly and noticed in the beginning the pump spinning in small cycles (on... off...on...off) and saw small, intermittent steams of water being pumped into the reservoir (by opening the coolant refill cap during the process). After 5 minutes it looked more like a wash cycle with the pump running constantly... did any of notice the same behavior?

Same. It's normal.