1995 f150 heater core hot but blowing cold air - Ford Truck Enthusiasts Forums



1995 f150 heater core hot but blowing cold air

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Old 03-09-2004, 08:59 PM
wellys wellys is offline
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1995 f150 heater core hot but blowing cold air

I have a 1995 ford f150. I stripped the heater core it's not blocked, fluid is flowing through both hoses very hot. When i stripped the box in behind the glovebox the heater core is very hot but the top left hand corner is blowing through cold air cant figure it out open to suggestions. Bit of a pain in the rear scraping ice from the inside of the window these mornings... Somebody help please

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Old 03-09-2004, 09:29 PM
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Ultramagdan Ultramagdan is offline
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Hello wellys and Welcome to FTE!

So you are saying that all the air through the heater core is hot and that the air through the left defroster vent is cold?
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Old 03-11-2004, 06:09 PM
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no heat

No I stripped out the glove compartment and took the plastic casing off the heater core. The entire core was very hot. No air was passing through, it's not blocked because I took it out. At the top left hand corner cold air was blowing through. This was the only place any air was comming through and it was cold But the rest of the core was hot ??????????? The truck has an a/c if that has anything to do with it.

Last edited by wellys; 03-11-2004 at 06:15 PM.
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Old 03-11-2004, 10:31 PM
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I would guess that you have a trapped air pocket there. Fluid is still moving through the core but for some reason you have air trapped there and since this is where the air is blowing through it, it does not heat up.
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Old 04-07-2004, 09:36 AM
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how do i get the air out
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Old 04-07-2004, 06:49 PM
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Find the highest possible part of your water system, undo the hose and run your truck until water comes out of the hose that you took off and fill the rad while the truck is running.

The same thing can be done by putting your truck on a steep hill or high ramps and run the truck for about 20 mins with a hose in the rad filler.

Randall
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