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water gurgling sound

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Old 02-02-2010, 02:48 PM
Join Date: Sep 2006
Location: Lowell, IN
Vehicle: 2003 Ford F150 SC Lariat 5.4 4x4
Posts: 69
water gurgling sound

how do you spell "gurgling"?

Anyway, for a while now I have been hearing the water gurgling in the truck probably from under the dash. you hear it mostly when you start the truck and when you shut it off. I dont see any problems from it but I was wondering what is causing it.

Do I need to add water to the system or is there air in the system?
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Old 02-03-2010, 01:34 PM
Join Date: Sep 2006
Location: Lowell, IN
Vehicle: 2003 Ford F150 SC Lariat 5.4 4x4
Posts: 69
all I hear is crickets
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Old 02-03-2010, 01:48 PM
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Join Date: Jan 2009
Location: Mansfield, MA
Vehicle: 2004 Ford F150 5.4
Posts: 10,514
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I have that too. Not often at all. Sounds like something is draining. Very very intermittent.
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Old 02-03-2010, 03:08 PM
Technical Article Contributor
Join Date: Oct 2005
Location: MI
Vehicle: 1998 Ford F150 5.4L 4X4
Posts: 25,636
- Yea, it needs to be bled is all. It wasn't filled correctly at some point. Here's the procedure -

Click the image to open in full size.

Your going to have to take the T-stat housing loose after your heater core line is disconnected, - to expel that air.

Last edited by jbrew; 02-03-2010 at 03:13 PM.
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Old 03-28-2010, 05:20 PM
Join Date: Mar 2010
Location: Arkansas
Vehicle: 1998 Ford F150
Posts: 54
I have that gurgle noise too...so i take the heat core hose loose the n the T stat, di i have to start it at all or does the air just come out?....thanks
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