Re: [BaadAssGremlins] AMC Gremlin Hornet dash vacuum diagram info wanted

Both vac lines from that switch under the dash should head over to the driver side under the dash and then head thru the firewall into the engine compartment, then hook one line to the vacuum operated coolant control valve on the back passenger side of intake manifold feeding the heater core and then hook the other vac line to direct manifold vacuum, but the line connecting to the manifold vacuum needs a check valve. The factory vacuum check valve looks like a half dollar size disc check valve, and should be on a short hose connected to a small nipple on the intake manifold, although styles might have changed and who knows if the check valve is even still there?

In a message dated 5/9/2012 7:15:23 P.M. Central Daylight Time, eddiestakes@xxxxxxxxxxxxxxxxxxxx writes:

Please simply reply here I'll forward it. The fellow below is looking for information on the two vac lines to Weathereye AC/heater
controls in his Gremlin. The conversation so far:
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I am trying to find a Vacuum Diagram for my "74 Gremlin with a V8. Any around. We are having trouble trying to figure out were the
two vacuum lines from the heater box switch go. I know one has to got to the heater control valve and the other ???
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On the vac lines, in the 74 AMC TSM there is a section called 'all season air conditioning' which sows one of the vac lines for the
door behind package tray. Page 12B-2. There are several factory illustrations in that chapter, but might not be what looking for,
but worth checking out if you have a shop manual.
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Hi Eddie, thanks for the info but done that-been there, the short paragraph that talks about the switch just tells you what it does.
The one picture of the switch shows two vacuum lines coming out but does not tell you or show you were they go. Common sense tells
you one connects to the heater control valve and the other CANNOT connect to a direct vacuum source just by the way the switch
operates. I have to find an AMC car w/AC and look at it. Try to find one here in NYC Thanks Again for your help. Joel
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These are two photos I just took of my low miler original 74 Hornet Sportabout. One shows the two vac lines on passenger side behind
the pack tray, while 2nd photo shows line #2 looking from floorboard upwards. Damned if I know where they go to but I think they
both go to the Weathereye AC controls on dash. Ironically I had the dash center out a few months ago installing one of those
newfangled AM/FM/Cassettes logoed radios you seen me pushing, but remembered seeing the hoses, just didn't give them much thought
like other sh*t behind dash.
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anyone have anything else to add please feel free to do so and thanks in advance to all who might reply here, I'll forward them to
Joel up in Bronx.
Eddie Stakes
713.464.8825
eddiestakes@xxxxxxxxxxxxxxxxxxxx
www.planethoustonamx.com