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Old 03-16-2011, 02:21 PM   #1
kcsa75
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Join Date: Oct 2010
Location: Kansas City
Posts: 3,590
Gurgling sound from heater core

When I first bought my truck I had the cooling system flushed and filled with new coolant. Now, as I'm driving -- with the motor warmed up -- I sometimes hear a gurgling sound coming from under the dash in the area of the heater core. I did some searching and saw some others had the same issue. But in each case, they were reporting no heat.

I have good heat, no leaks. Just this annoying sound coming from under the dash.

Any ideas?

Thanks in advance!
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Swamp Angel Truckers
'72 C10 Highlander


People who blindly follow a GPS end up on television programs on The Weather Channel. Some survive, some don't.
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