1999 Buick Park Avenue sloshing noise behind dash

1999 BUICK PARK AVENUE
175,000 MILES • 6 CYL • FWD • AUTOMATIC
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MDGIBBONS
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I have a 99 Buick Park Avenue that makes a sloshing noise behind the dash when you accelerate the engine, even in neutral. What could be some of the possibilities?
Sep 7, 2009 at 7:48 AM
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CRZYDRVR
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Has the coolant level been checked? If it is low, the noise could be comming from the heater core.
Oct 4, 2009 at 8:20 PM
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MDGIBBONS
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I believe that is what's going on. I checked the coolant the other day and it was low. When I added coolant, the noise stopped.

Thanks for the confirmation.
Oct 7, 2009 at 1:59 PM
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