Question about 2004 Pontiac Grand Prix

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Water sound inside 2004 grand prix

I hear water running circulating under the dash when I start the car. There is no water in the floor..

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This sound you hear is your cooant going to your heater core. Check your coolant level , radiator cap and thermostat. one of these mught be on its way out. If you have no problems with your heat or a/c then flush your radiator and don,t worry about anything. I hope this helps. Don,t forget to rate my answer, thanks

Posted on Feb 27, 2009

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Funny sound coming out of my dash...


Hi and welcome to FixYa,

The only possible source of the sound would be the coolant moving inside the heater core inside your dash. You may want to check the level of the water/coolant in the radiator & the coolant reservoir. Likewise to check would be the connection points leading to the heater core on the firewall in the engine compartment.

Good luck and thank you for using FixYa.

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