Anyone know what the weird water rushing, flowing or gurgling sound is when I crank my car and when car switches back to the gas engine from battery , it also stops not long after the switch? It sounds like it's coming from in the dash. Also it is making a rough running knocking sound when I crank it as well. Both stop shortly after running a minute. Any insight is appreciated!! Thanks in advance.

  • gurgle sound is most likely water running in the heater core, have your coolant level checked when the engine is cold., it should no do this under normal conditions. – Moab Mar 26 '19 at 21:23

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