66 gto ac vacuum line diagram needed - Pontiac GTO Forum
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post #1 of 33 (permalink) Old 11-01-2010, 10:07 PM Thread Starter
 
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66 gto ac vacuum line diagram needed

help i need a diagram of the vacuum lines for the air con , i didnot take the car appart so i dont know where any of the hoses go any help would be great thanks
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post #2 of 33 (permalink) Old 11-04-2010, 10:54 PM Thread Starter
 
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please can anybody help me with this , i need to put the vacuum hoses back so i can fit the dash , any help would be great thanks
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post #3 of 33 (permalink) Old 11-05-2010, 10:23 AM
 
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From the service manual for 1967, but I am almost sure 66 is the same.The small "round wheel" in the lower left corner is the dash control. The vacuum ports are numbered. Eric



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post #4 of 33 (permalink) Old 11-05-2010, 09:12 PM Thread Starter
 
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thank you mr animal that is very helpfull , please check out my web site www.azaap.com if you need any rust free arizona parts also some pics of the gto i am doing $25 hour shop rates for restorations , my wife will up date the web pictures on sunday so you can see all my pontiacs mostly ta,s
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post #5 of 33 (permalink) Old 11-06-2010, 06:47 AM
 
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MY pleasure. I could use a rust free 67 GTO shell......Cool pygmy goats and nice puppies ! Eric heres's a couple of my "critters"



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Last edited by Eric Animal; 11-06-2010 at 06:59 AM.
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post #6 of 33 (permalink) Old 10-31-2017, 11:39 PM
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I have a 65 this looks the same,except for were the lines connect at the junction to go out to the engine.is that a canister or a junction into one line to engine?
thanks
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post #7 of 33 (permalink) Old 11-01-2017, 04:29 AM
 
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If your referring to round/circle portion of the schematic, if you look close you will note there are numbers.
That circular image represents the Vacuum Valve/Control head.

Similar to this;

GTO Jr. - A.K.A. SPRINT 6
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post #8 of 33 (permalink) Old 11-01-2017, 09:53 AM
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My vacuum lines go threw the fire wall I don’t have that pice.at some point who ever had my car first cut the vacuum lines coming out into the engine compartment.the scamatic looks the same until you get to that vacuum valve.
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post #9 of 33 (permalink) Old 01-03-2018, 08:02 AM
 
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This is good information but does anyone have a schematic of the vacuum lines as they route into and through the engine bay?

Thank you,
Andrew
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post #10 of 33 (permalink) Old 01-08-2018, 03:00 PM
 
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To be more specific I need to know how to route the 1/8" vacuum lines that come through the firewall in the upper part of the heater box. Anybody have a similar car that you can send me some photos?

Attached is a photo I found on line to clarify which lines.

Thank you,
Andrew
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