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Needing Heat/AC controller diagram.

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Old Jan 25, 2016 | 07:37 PM
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Choppermike
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Needing Heat/AC controller diagram.

I have searched through and couldn't find, sorry if I overlooked, but I need the wiring/vac hose/ cable diagrams for the under dash heat and ac if anyone has them. My heat will only blow on the defroster and I'm finding all kinds of things the PO has done so I want to make sure all is correct. Thanks, Mike
 
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Old Jan 25, 2016 | 08:34 PM
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I think I finally found part of what I was looking for.
 
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Old Jan 25, 2016 | 09:16 PM
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Originally Posted by Choppermike
I have searched through and couldn't find, sorry if I overlooked, but I need the wiring/vac hose/ cable diagrams for the under dash heat and ac if anyone has them. My heat will only blow on the defroster and I'm finding all kinds of things the PO has done so I want to make sure all is correct. Thanks, Mike
What year is your truck?
 
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Old Jan 25, 2016 | 09:23 PM
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78 f100 Custom. 2wd flareside.
 
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Old Jan 25, 2016 | 09:48 PM
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Originally Posted by Choppermike
78 F100 Custom, 2WD Flareside.
1973/79 F100/350 & 1978/79 Bronco: THREE different types of A/C:

1) Upper & upper center pics: Factory installed integral A/C is combined with the heater. The A/C controls are located in the same panel as the heater controls.

2) Lower center pic: Deluxe dealer installed A/C is combined with the heater.

The A/C controls are located in the HUGE dash bezel that sweeps across the entire right side of the dash, covering up the glove box.

There's a 'hang-on' glove box bolted to the bottom of the dash.

3) Lower pic: Economy dealer installed A/C is not combined with the heater. The A/C controls are located in a panel that also contains two A/C registers.

This panel fits into the dash to the right of the glove box.
 
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Old Jan 26, 2016 | 06:57 AM
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Thank you so much, exactly what I needed. Mine is the upper pics, factory installed AC. Thank you again.
 
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