strange heat issue - Defender Source
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  #1  
Old March 2nd, 2005, 03:35 PM
jabber
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strange heat issue

Very strange issue with the heat on my 94.... So I wait until the engine warms and crank up the heat. Driver's side blows hot, passenger's side blow relatively cool.

The only changes i have made to it are to add a scoop to the wing and remove the plastic deflectors from the dash.

Has anyone seen this before?
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  #2  
Old March 2nd, 2005, 04:05 PM
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Try moving the hot / cold lever back and forth a few times.
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Old March 2nd, 2005, 04:39 PM
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Well, I cant think of a rational reason for that phenomenon. The entire lower dash is the heater plenum. There are flapper doors to direct air at the footwells, but if the heat is on, air will come out the demister vents no matter what. There are no doors that can be out of position and cause the problem.

What condition is your dash in? I though mind was good, but when I disassbled it it was rotting under the tray - the metal had rusted completely through. So maybe the dash has rusted out or maybe the hose that runs from the lower dash to the demister has come undone and its drawing cold air in.

You might just take a sugar pill and see if that helps.
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  #4  
Old March 3rd, 2005, 01:32 AM
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Try a donkey to the canary and swerve the crane and moose with the monkey in position to bore the wilderbeast right.

It that fails, stuff some haggis in there and the warmth will spread widely.

Wow, that's a strange one. Call Tuttle - check the ducts.
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  #5  
Old March 3rd, 2005, 11:50 PM
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I noticed a similar problem: the air on the passenger side always blows cooler than the driver side. This is especially noticeable when I adjust the heat level, where the passenger side will often be cold when the driver side is warm or cool.
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  #6  
Old March 4th, 2005, 11:02 AM
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So I tried sliding the heat lever from cold to hot a coiuple of times.... Then I slid all the levers back and forth a couple of times. Still nothing so far. My next step is to stick haggis into the vents. Luckily I have some to spare. While doing this I plan on putting away quite a few Guinness (thanks Rod).

I guess the next step is tear it apart... Well, that may not happen until this summer.
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  #7  
Old March 4th, 2005, 01:03 PM
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Does anyone's heater actually blow hot air. Mine is lukewarm at best. Except in the summer, when hot air comes through the vents regardless of the setting.
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  #8  
Old March 4th, 2005, 01:08 PM
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That's the weird thing... My drivers side vent actually blows hot air, even in the winter! The pss side blows cold, soemtime luke warm. For now i just tell the ladies to close they're legs and cover themselves with a blanket.
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  #9  
Old March 4th, 2005, 01:26 PM
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Mine blows really hot air out of both.
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  #10  
Old March 4th, 2005, 01:55 PM
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Quote:
Originally Posted by Ragland
Does anyone's heater actually blow hot air. Mine is lukewarm at best. Except in the summer, when hot air comes through the vents regardless of the setting.
Yes, mine does. Make sure the hot/cold cable is properly adjusted.

Here is a shot of the thermoeter in mine.
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  #11  
Old March 4th, 2005, 02:26 PM
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[QUOTE=jabber]So I tried sliding the heat lever from cold to hot a coiuple of times.... Then I slid all the levers back and forth a couple of times. Still nothing so far. My next step is to stick haggis into the vents. Luckily I have some to spare. While doing this I plan on putting away quite a few Guinness (thanks Rod).


-------------------------------------------------------------------------------------------------------------------------------
jabber-

Have you been sneakin' down to my place snitchin' Guinnie's out of the root cellar? You're not that far away. Do we know each other, or is there another Rod posting?

RE: heater issue-- mine blows...

Rod
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  #12  
Old March 6th, 2005, 12:24 AM
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[QUOTE=Rod Hayward]
Quote:
Originally Posted by jabber
So I tried sliding the heat lever from cold to hot a coiuple of times.... Then I slid all the levers back and forth a couple of times. Still nothing so far. My next step is to stick haggis into the vents. Luckily I have some to spare. While doing this I plan on putting away quite a few Guinness (thanks Rod).


-------------------------------------------------------------------------------------------------------------------------------
jabber-

Have you been sneakin' down to my place snitchin' Guinnie's out of the root cellar? You're not that far away. Do we know each other, or is there another Rod posting?

RE: heater issue-- mine blows...

Rod
Nah man... I wouldn't steal a man's Guinni!!! I traded some rust old running boards for some Guinness (I feel I totally made out on the deal)! The guy that brought me the Guinness was Rod Rubino; he lives around the corner from me, here in the People's Repub.

But hey, if you're up for drinkin a couple of guinness and talkin LRs; I'm always UP!
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  #13  
Old March 6th, 2005, 12:16 PM
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John B,
Can you send some more info about that thermometer? Ide really like to know where you mounted it and where the outdoor temp sensor is and all. It seems like a nice addition. Who makes it also?
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  #14  
Old March 6th, 2005, 02:08 PM
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Quote:
Originally Posted by jabber
For now i just tell the ladies to close they're legs and cover themselves with a blanket.
I thought a Defender was supposed to have the opposite effect

Get that thing fixed man
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  #15  
Old March 6th, 2005, 02:12 PM
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Quote:
Originally Posted by dave_lucas
I thought a Defender was supposed to have the opposite effect

Get that thing fixed man
Holy crap, get that fixed Jabber. As DL says, you should be experiencing panty precipitation in and out of the cab.

Seriously, check your cable connection at the heater box. The cable stretches over time and needs to be adjusted. At the same time, spray some silicon lubricant around the cable actuator (nubbin) coming out of the top of the heat box.
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  #16  
Old March 6th, 2005, 05:42 PM
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Oh the D90 is having the right effect! The blanket covering is only after they're already off... I've been very lucky that the weather has been cooperating.

I must say... The D90 is a chick magnet.
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