Thread: Heater A/C controls
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Old 11-13-2019, 08:47 PM
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OG68 OG68 is offline
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A/C cars have one cable for temperature control.
All other functions are controlled by vacuum.
See attached charts from the restoration guide.

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1968 GTO (Thanks Mom)
2006 Silverado
2007 Cadillac SRX
2015 Chevy Express

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