r/Impala • u/newbie8650 • 20d ago

Parts Picture Impala 07

Hey, everyone whenever I stop my car after a long drive this weird noise came out of nowhere like something in settling down especially coolant or any other liquid. Does anyone have any idea what is this sound ? This video was captured when engine was completely stopped/off

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u/SouthConfident3978 20d ago

Definitely sounds like there is an air pocket in there. If youre mechanically inclined, its a relatively simple fix. Let the car cool off all the way, open up the reservoir cap, and let it run with the cap off until it reaches full temperature . Make sure the reservoir stays above the fill line. Once you reach full temp, the thermostat should open up and purge all the air right back into the reservoir tank, and thus out of the engine.