Does it leak out of another port? If so, which one?

 

it leaks out of number 3, not sure of color since dash is back together. but if your looking at a back view of the mode switch, its at the 9 oclock position on the inside of the two

 

In the vacuum connector at the mode switch, connect the vacuum pump to the red vacuum line, apply vacuum and see if it holds.

 

what mode is it on when i do this?

 

In the connector, with the mode switch unplugged.

 

gotcha! Will probably be done tmr night or friday. Originally when i tested the colored lines only yellow and brown had the slow leak and red blue orange tested fine, but i will double check red line again

 

Red tested fine, if anything it dropped less than a quarter but i could be going senile at this rate haha....

This morning i had time to test it again....both on ac and then heat for every mode....max ac ac and bi level worked perfectly, only a small amount came from defrost vent then when i started driving it didnt come out of defroster...the only thing that didnt work was floor it also came out of defroster but i can live with that i never use foot only....when off is selected....it still comes out of defroster vent

Testing was with old unit too

 

redid the test on all vacuum lines...heres my results by what number port the color corresponds to (after 10 minutes is second number)

1 Orange 20 -20
2 Red 20-19.5
3 Yellow 20-17
4 Brown 20-20
5 Blue 20-19.75
6 Black 20-20

 

OK, that's good. No leaks in the lines or actuators. As you're applying vacuum to each line, make sure each actuator operates its linkage, and the door actually moves.

 

Here's what I got wheni based on color

Red-vents ( lightly defrost and floor)
Orange- high vents (assuming max ac)
Brown- defrost/floor (light vent)
Yellow- floor (light defrost)
Blue- vents (light defrost and floor)