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Heater/AC Question #2066748 05/03/16 09:38 PM 05/03/16 09:38 PM
Joined: Sep 2006 Posts: 3,010 Sac, CA M mopowers OP master
mopowers OP master M Joined: Sep 2006 Posts: 3,010 Sac, CA	Did non-AC cars come with a water flow valve in the heater hose? If not, why?

Re: Heater/AC Question [Re: mopowers] #2066817 05/03/16 10:46 PM 05/03/16 10:46 PM
Joined: Feb 2003 Posts: 8,677 A Andrewh master
Andrewh master A Joined: Feb 2003 Posts: 8,677	I want to say no, they didn't. The blend door directed either fresh air or heated air into the cabin. since you didn't have to fight the heat with a/c no reason to add a valve.

Re: Heater/AC Question [Re: mopowers] #2066906 05/04/16 01:03 AM 05/04/16 01:03 AM
Joined: Sep 2006 Posts: 3,010 Sac, CA M mopowers OP master
mopowers OP master M Joined: Sep 2006 Posts: 3,010 Sac, CA	That's what I was thinking. Thanks!

Re: Heater/AC Question [Re: mopowers] #2066915 05/04/16 01:20 AM 05/04/16 01:20 AM
Joined: Sep 2006 Posts: 3,010 Sac, CA M mopowers OP master
mopowers OP master M Joined: Sep 2006 Posts: 3,010 Sac, CA	Where'd the factory typically pull vacuum for the vacuum actuated controls in the heater/ac system? Is it just pulled from the intake manifold?

Re: Heater/AC Question [Re: mopowers] #2066948 05/04/16 02:22 AM 05/04/16 02:22 AM
Joined: Dec 2003 Posts: 4,951 northwest USA N NANKET master
NANKET master N Joined: Dec 2003 Posts: 4,951 northwest USA	Yes, screw in fitting in back of intake runner where brake booster hose usually goes. a small tube for the heating system. Can be just the small tube straight up if car has no power brakes, otherwise the large one straight up and the small one comes out of the side where the hex is for the wrench.

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