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Off switch for your heat?

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Old Oct 15, 2001 | 12:22 AM
  #1  
krafty79's Avatar
krafty79
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From: Scott AFB IL
Default Off switch for your heat?

Has anyone tried this simple fix?

Install a seperate "kill" switch for the heater blower.

-remove the center console side panel, drivers side
-find the brown wire going to the fan speed control switch
-cut it, add a "loop" line to a new on/off switch, mount under dash, in dash, on console, where ever you want.
-you now would have a true "off" position that GM forgot.

is this too simple?


[Modified by krafty79, 11:13 PM 10/14/2001]
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Old Oct 15, 2001 | 02:29 AM
  #2  
BSeery's Avatar
BSeery
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Joined: May 2001
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From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
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St. Jude Donor '06-'10, '13
Default Re: Off switch for your heat? (krafty79)

All GM cars had flow through ventilation.

Trust me. Turn you fan off, put the heater selector to HOT and then drive around for a while. You will have warm are coming out of the heater vents.

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Old Oct 15, 2001 | 02:33 AM
  #3  
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Steve Straus
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From: Charles Town WV
Default Re: Off switch for your heat? (krafty79)

I don't get it, my heater has an off switch.
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Old Oct 15, 2001 | 11:37 AM
  #4  
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thejaf
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From: Roanoke Virginia
Default Re: Off switch for your heat? (Steve Straus)

The later C3's don't have an "off" setting that works, the blower runs all the time.

As to your main issue of heat in the cabin, I just rebuilt the heater box in my 1972 this weekend, and can give you some suggestions:

1. Stop coolant from entering heater core in warm months. Install a ball valve in the feed line to the core would be an easy, Lowes fix.

2. Make sure the flapper door in the heater box is completely closed when in the "cold" position. There is an adjustable cable from your temperature control that moves this door. The door itself is somewhat insulated and the edges are rubber, creating a fairly effective block to the heater core when closed properly.
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Old Oct 15, 2001 | 11:40 AM
  #5  
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Ganey
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From: CORVETTE 77 385 C.I. TEXAS
Default Re: Off switch for your heat? (krafty79)

I just disconnected the brown wire from the resistor box under the hood many years ago to make low off.

:cool:
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Old Oct 15, 2001 | 12:02 PM
  #6  
krafty79's Avatar
krafty79
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From: Scott AFB IL
Default Re: Off switch for your heat? (Ganey)

Ganey, do the other two positions still work when the brown wire is disconnected?

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