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#1
07-23-2012, 10:34 AM
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Rushing Water Noise in dash of 07 GP
I just bought a 2007 Grand Prix with only 38k miles on it. It's a 3.8 (Series III) V6 I've only had it 3 days and this morning it started making a rushing water noise in the passenger side of the dash every time I accelerate or make a turn. It doesn't go away once warming up. Had it checked for a plugged drain and nothing was clogged. Could the dealership I purchased it from possibly have done a coolant flush and not filled it up enough causing an air pocket in the heater core or could it be something much more serious? Any advice would be appreciated... Thanks!
Last edited by Hol78; 07-23-2012 at 10:49 AM. Reason: Added engine info. 
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#2
07-23-2012, 10:54 AM
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Re: Rushing Water Noise in dash of 07 GP
I beleive you may be right on with the coolant concern. I have heard this several time on the GP and it is always has to do with air in the coolant system. I recomend topping off the coolant with "spill-free funnel" that attatches to the radiator or surge tank. These are ideal for bleeding the air from a cooling system.
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Hol78 (07-23-2012)
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#3
08-11-2012, 07:23 PM
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Re: Rushing Water Noise in dash of 07 GP
This happened to my 2004 Grand Prix as well. It was indeed air inside of the coolant.
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