hvac box to controller vacuum line connection

[jpierce55]

All, this is the last part I need to figure out. On adding my ac I figured all of my wiring, but have no idea on the vacuum lines to the ac box, or if I need vs connector I don't have?

[KevinK]

You need an EVTM manual.

[xctasy]

See

http://vb.foureyedpride.com/showthre...uum-lines-help

And

http://www.mustangandfords.com/how-t...ntrol-systems/

[xctasy]

Post #14, page 1

http://vb.foureyedpride.com/showthre...86#post1870686


Ford and GM used the same hose line and coding.

[jpierce55]

Thanks

[xctasy]

Although the dash changed in 87, the 82-93 HVAC controls are all virtually the same in regards to vacuum controlled and cable controlled. There were some changes in regards to the control unit in the dash, but the basic box under the dash didn't really change much from 82-93.

The non A/C cars are generally cables only and the A/C cars use the cable for the blend door and the rest is all vacuum operated.

KevinK is right.

Between the junctions, the colors can change, so can the total numbers of vac lines. For your 85 LX, it was born with five, but your aftermarket is a GM style 8. So you may have another black line, ie two black vac lines to the engine bay.


Sometimes 5,









sometimes 7 or 8.

Finding the right early diagram is important.

This is the 87-93 one



Our Australian Fords have 9 lines.

[jpierce55]

Thanks again... I may just have to experiment .

[jpierce55]

For sake of argument.... If attached vacuum line to the controller and blew threw the line. I was able to figure out what output was was, by doing so and moving the levers. The dash is ready to go back in.

I need to finish rewiring the car and need to take the ac lines to be crimped. After that finishing stripping the paint and a repaint are the only hard parts left.

[massacre]

Good on you for figuring it out, nice work!

[xctasy]

For sake of argument.... I attached vacuum line to the controller and blew threw the line. I was able to figure out what output was was, by doing so and moving the levers. The dash is ready to go back in.

I need to finish rewiring the car and need to take the ac lines to be crimped. After that finishing stripping the paint and a repaint are the only hard parts left.

Good on you for figuring it out, nice work!

Yeah baby. A case of the opposite to Suck and see!

You rock!

[massacre]

A mity vac is a good tool to have for jobs like this