A/C VACUUM LINES E BODY WHERE DO THEY GO?

Posted By: 340propak

A/C VACUUM LINES E BODY WHERE DO THEY GO? - 08/26/08 12:22 AM

Does anyone have a diagram of where the A/C and heater vacuum lines from the heater control box go to on a 70 challenger? can't seem to find that anywhere and i didn't label them when i took this apart.

thanks
John

Posted By: Challenger 1

Re: A/C VACUUM LINES E BODY WHERE DO THEY GO? - 08/26/08 01:27 AM

No diagram handy. They come off the heater box and plug in the controls inside the car. Then there is a rubber plug under the heater box in the firewall that the vacuum supply comes from the intake manifold. There will be one vacuum hose loose that plugs into the gromet/rubber plug at the firewall. The inside vacuum lines run over the top of the streering columm.

Posted By: Blue66Charger

Re: A/C VACUUM LINES E BODY WHERE DO THEY GO? - 08/26/08 02:11 AM

Detroit Musclecar Technologies - they sell the rebuild kit and has a great photo sequence on the HVAC box

Posted By: 71rm23

Re: A/C VACUUM LINES E BODY WHERE DO THEY GO? - 08/26/08 05:40 PM

Quote:

Detroit Musclecar Technologies - they sell the rebuild kit and has a great photo sequence on the HVAC box

Rebuilding mine right now.

Posted By: 340propak

Re: A/C VACUUM LINES E BODY WHERE DO THEY GO? - 08/26/08 08:18 PM

The picture helps a lot,but i can't tell where the vacuum lines go, I wanted to know where each line goes to vacuum actuators, the vacuum lines are color coded RED, YELLOW, WHITE,
and Black

thanks for the help
john

Quote:

No diagram handy. They come off the heater box and plug in the controls inside the car. Then there is a rubber plug under the heater box in the firewall that the vacuum supply comes from the intake manifold. There will be one vacuum hose loose that plugs into the gromet/rubber plug at the firewall. The inside vacuum lines run over the top of the streering columm.

Posted By: Anonymous

Re: A/C VACUUM LINES E BODY WHERE DO THEY GO? - 08/26/08 09:12 PM

its kinda nasty but you can use a clean length of hose and check each fitting [might have to block some off]by sucking on hose and work each switch/engage and trace them out.use a new inline fuel filter for lung protection

Posted By: Snoopy

Re: A/C VACUUM LINES E BODY WHERE DO THEY GO? - 08/26/08 10:44 PM

From the 70 Factory Service Manual
Click on attachment for larger picture.

Attached picture 4644446-ACVacuumCircuits.jpg

Posted By: Snoopy

Re: A/C VACUUM LINES E BODY WHERE DO THEY GO? - 08/26/08 11:24 PM

Attached picture 4644547-ACVacuumCircuits2.jpg

Posted By: 340propak

Re: A/C VACUUM LINES E BODY WHERE DO THEY GO? - 08/27/08 12:09 PM

thanks, thats the diagram i was looking for!
should have known to ask you guys first instead of wasting time searching the web.

john

Quote:

From the 70 Factory Service Manual
Click on attachment for larger picture.