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Unread 11-12-2007, 04:01 PM   #46
Jim Piszar
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1988 YJ Wrangler 
 
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Quote:
Originally Posted by Ferrick
Oops, yeah, I was talking about the foam as pictured, Jim. I hadn't looked into it but after reading this thread remembered noting that it was nasty dirty and could stand replacing.

Is there a consensus on whether or not it needs to be replaced?
It looks like it would be easy to take out and clean by removing the screws around the periphery of that housing. The hardest part would be prying it apart due to the sealer.

jim

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Unread 11-13-2007, 07:34 AM   #47
Ferrick
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True. I'd just be worried that the foam is so old it would dissentigrate under any sort of (water) pressure.

Might as well give it a shot in the coming days.
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Unread 11-13-2007, 09:03 AM   #48
Matt The Hammer
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Quote:
Originally Posted by Ferrick
Is there a consensus on whether or not it needs to be replaced?
Isn't that foam directly applied to the door? I think it's so it dosen't rattle (like everything else on my YJ).
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Unread 11-13-2007, 03:09 PM   #49
Sambox
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So, what if the heater doesn't work at all. Yeah, I'm in Tucson where it still gets into the 70's during winter, but I am a desert rat and I get cold. I turn it on, can here air blowing, but don't feel anything, just a little coming from the dash, and it's only warm, never burning. I've replaced the heater core (it was leaking) and the t-stat. What are the procedures for checking the equipment?
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Unread 11-13-2007, 04:04 PM   #50
NewhampshireYJ
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Quote:
Originally Posted by Sambox
So, what if the heater doesn't work at all. Yeah, I'm in Tucson where it still gets into the 70's during winter, but I am a desert rat and I get cold. I turn it on, can here air blowing, but don't feel anything, just a little coming from the dash, and it's only warm, never burning. I've replaced the heater core (it was leaking) and the t-stat. What are the procedures for checking the equipment?

Your door for the heat is probly not open all the way. This is what was wrong with mine atleast i had the same things happen to me... the air blew not so hard and the heat was just a little bit warm. On the passenger side right under the glove box youll see a adjuster its like a bar inside a small passage that can be moved back and forth.(It opens to let all the heat throught) If u push it twoard the driver side all the way over as far as possible it will open the door better. After i did that my heat burns my hand if i stick it infront of a vent its so hot.
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Unread 11-13-2007, 04:28 PM   #51
Sambox
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Quote:
Originally Posted by NewhampshireYJ
Your door for the heat is probly not open all the way. This is what was wrong with mine atleast i had the same things happen to me... the air blew not so hard and the heat was just a little bit warm. On the passenger side right under the glove box youll see a adjuster its like a bar inside a small passage that can be moved back and forth.(It opens to let all the heat throught) If u push it twoard the driver side all the way over as far as possible it will open the door better. After i did that my heat burns my hand if i stick it infront of a vent its so hot.
The little bar (a bent coat hanger) just spins around in circles...so it's supposed to connect to something? When I changed the heater core, I noticed there were two doors in the box (if I remember right). I don't think they were connected to anything.

A heater has two controls, the temp (red to blue lever) and another for speed (a lever for hi and low) They each control a door? Does the motor constantly blow then?
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Unread 11-15-2007, 06:19 AM   #52
XFR Jay
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Quote:
Originally Posted by Jim Piszar
I think Ferrick may be talking about the foam on the vent opening. I'm not sure if it is a filter or just a seal for the vent flap but, mine is pretty nasty too.


jim

Sorry for the delay on my own thread but here is what I found:

-Jeep runs for 5 minutes and temp guage is a 195-200 area and stays there
-vents up by window blow pretty warm air but not burning hot
-vents on floor are the same
-The vent pictured above is blowing in cold air faster then the warm air is coming in through the other vents. Anyone have any ideas?
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Unread 11-15-2007, 06:37 AM   #53
Jeffro06
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Quote:
Originally Posted by XFR Jay
-The vent pictured above is blowing in cold air faster then the warm air is coming in through the other vents. Anyone have any ideas?
If the vent pictured (fresh air vent) is blowing in while the heat is on, there's your problem. Mine closes when I slide the lever to heat. I'd check that first.
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Unread 11-15-2007, 10:58 AM   #54
timatoe
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Quote:
Originally Posted by Jeffro95
If the vent pictured (fresh air vent) is blowing in while the heat is on, there's your problem. Mine closes when I slide the lever to heat. I'd check that first.
True,,,that vent should be completely closed when the heater is running, and should not have forced air coming through ever (by forced I mean via the blower motor). The blower shouldn't run when the vent door's open is what I'm trying to say.

So in short that door is not functioning properly.
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Unread 11-15-2007, 01:16 PM   #55
schizm99
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outside air

Yea thats the outside air vent. On the right side is a lever try moving that with your fingers. I can visiually see it open and close. Open is letting outside air in. Someone correct me if I am wrong!
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Unread 11-15-2007, 02:00 PM   #56
GreyfoxVt
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My Jeep is still not putting out hot air with the blower fan. I replaced the fan, core, switch, and coil rectifyer, but still no fan! There are only two wires connected to the fan on with power and the other a ground, how hard can this be?
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Unread 11-15-2007, 06:17 PM   #57
yj40swapped
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Quote:
Originally Posted by GreyfoxVt
My Jeep is still not putting out hot air with the blower fan. I replaced the fan, core, switch, and coil rectifyer, but still no fan! There are only two wires connected to the fan on with power and the other a ground, how hard can this be?
Open wire between the switch and blower motor? Got test light? You could always get a toggle on/off switch and bypass the factory switch.
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Unread 11-04-2010, 03:51 PM   #58
Ripper3494
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my jeep is a 94, i guess those already have a good blower motor? but mine doesnt blow very hard at all, top and doors and i still freeze
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Unread 11-04-2010, 04:27 PM   #59
19YJ91
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My blower sounds like its blowing fine but hardly any air comes out of the vents. But for some reason if I go uphill it blows out like you would expect. any ideas?
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Unread 10-29-2012, 11:39 AM   #60
unclebubb63
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would like to know where to get the vent deflectors at hands are cold
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