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Gurgling noise when car is on and the car is using battery

3866 Views 6 Replies 6 Participants Last post by  Homer Simpson
I can hear a strange gurgling/bubbling sound behind the dash when the car is on and operating in battery mode, is this a normal operating sound?
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Ate you sure it’s not the atc ( automatic temp control ) cycling the system to off . There is a fan motor and auto controls that open and close .
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