No heat to top vents? 1993 Festiva

[Meepersly]

On my car, even when heat is coming out of the top and bottom vents, cold air(on cold days) comes out of the center vents. Something probably isn't sealing right. I get air coming out of the vents when nothing is on while driving down the road.

I have airflow out the vents when off too when I'm driving it. A tiny bit while on recirculation. Eventually when it bothers me enough I will try to fix it.

[browngirl10]

Ok so my heat stop working, someone said it was the heater core needing to be replaced, I ordered one then realized the car was getting hot inside the car when heater was on, but blowing cool air out of to vents. But from what I'm reading I could just replace the thermostat and it week fix theproblem?

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[Meepersly]

Thermostat is the cheaper and easier thing to try first. But since you already ordered a heater core might as well replace both

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[browngirl10]

Dang! I will definitely search here first next time! I was reading another thread about not buying stock thermostat, that a Mazda one would be better but they didn't specify which one, do you know?

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[Meepersly]

Not really sure I think they are the same actually. I put my b3 thermostat in my b8-me and it works amazingly. When I originally bought the engine it had no thermostat. I do know the stock b3 engines don't get very warm

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[mikemounlio]

I built a heater box in my center console tray area. I used a small heater core inside a box i built out of metal air duct meterial. I cut a hole in the back and stuck a computer fan on it. It works enough to keep me from freezing. I need to redo it and make it more efficient.

[browngirl10]

Thanks

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[william]

Make sure your heat is set to floor or defrost it doesn't heat threw the vents .
And in my experience both tstats are the same the "2 stage" oem one may heat up faster but I can't tell if yiu want a cheap 2 stage oem type go to autozone and get one for a 92 miata it's the oem type for like 12 bucks.

[browngirl10]

Lol now that you mention it I haven't even checked to see what it's set on!

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[fusiblelink]

I built a heater box in my center console tray area. I used a small heater core inside a box i built out of metal air duct meterial. I cut a hole in the back and stuck a computer fan on it. It works enough to keep me from freezing. I need to redo it and make it more efficient.

Fan these folk used seems bit more powerful and efficient. http://www.rzrforums.net/projects-ho...r-plans-2.html

But congratulations on doing end run around the stupid placement of Festiva heater core. I have thought of doing that, thus me finding the above article. In past I have owned vehicles with $$$ heater cores or fans. Or ones buried like the Festiva. Either cobbled something or lived without heat or in case of the Festiva, just park it for the winter. Its not a great winter car for my situation, heat or no heat. Anyways, engineers that design such PITA heaters need good dope slap to back of head.

[fastivaca]

Ok so my heat stop working, someone said it was the heater core needing to be replaced, I ordered one then realized the car was getting hot inside the car when heater was on, but blowing cool air out of to vents. But from what I'm reading I could just replace the thermostat and it week fix theproblem?

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If the top vents as you call them are the ones facing into the car just above the heater controls then you don't have a problem. These two vents, along with the two at either end of the dash, are not designed to blow heated air but only outside air (or cold air if you have A/C).

[TominMO]

I get very little air out of my defrost vents, and still plenty from the floor vents when the selector is all the way over to the right, on defrost. I'm thinking the sealing is pretty much gone around the blend doors.

[TorqueEffect]

I get very little air out of my defrost vents, and still plenty from the floor vents when the selector is all the way over to the right, on defrost. I'm thinking the sealing is pretty much gone around the blend doors.

same here. And I also get a trickle of cold air out the main vents while on floor and or defrost.

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[william]

Blinding door seal / cable misaligned

[Gomez]

On my car, even when heat is coming out of the top and bottom vents, cold air(on cold days) comes out of the center vents. Something probably isn't sealing right. I get air coming out of the vents when nothing is on while driving down the road.

Replace the gasket on the fresh/recirc flap. Over the years they rot out and quit Working properly.