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Old 10-08-2023, 12:18 AM
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nh68gto nh68gto is offline
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Question A/C question

So where do all the vacuum lines from the control switch go to. All my pics were lost. Have no idea.

69 GTO

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Old 10-08-2023, 05:14 AM
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So where do all the vacuum lines from the control switch go to. All my pics were lost. Have no idea.

69 GTO


Page 1A-36 on 69 Pontiac Service Manual.


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Old 10-08-2023, 05:30 AM
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Page 1A-36 on 69 Pontiac Service Manual.


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I spent many hours on my back tracing lines and routing the vacuum hoses to the proper connections. When you put the switch to the AC position both the upper and lower doors will open. You may need to pull the heater/AC box out a little to get the vacuum hose connected to the upper and lower doors.


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Old 10-08-2023, 06:04 PM
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Great !!! Ty !

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