Alright ive had my 86 na on the road since march, and for some odd reason at all points in time hot air comes out of my vents. Once im running hot it does it worse , I figured it was a vacuum leak, but i cant find the damn thing. Im at a loss of figuring it out and figured i would ask for some help lol
Please and Thanks Zach

 

Have you checked the coolant / heater valve?

 

No. I really didnt think that it could go bad. and thanks for the input.

See but that still doesnt answer why air only comes out my defrosters no matter what i have it selected as?

 

Because that's the default setting with no vacuum pressure.

Check all the vacuum lines from the vacuum canister to the firewall. Also all vacuum lines on the heater valve on the right rear of the engine.

 

Alrighty thanks and is there anyway i can get ahold of one of the vacuum diagrahms?

 

Download a facrory service manual here.

http://www.xenonz31.com/reference.html

 

once again thanks for the help.

Zach

 

put a cut off valve between the heater core hoses i did it and it works

 

i have the same problem. lemme know what yah did.

 

Alright i think my vacuum tank is bad but i ran a new vacuum to the water **** and after a few pumps of the gas it has enough to shut it, for the interior actuators the line running to them is bad on dash side and haven't had time to pull the dash and find it/.

 

good luck. and post pics if yah can.

 

I've pulled the dash out of my car hundreds of times so no need for luck on that lol. Its just tracing the vacuum line that will give me problems.

 

mine doesnt run so im not worried bout mine... yet.

 

Wow, you're brave. I've never pulled a dash out of any car I was going to have to put it back in, and hope I never have to. I'm sure that's a real bitch of a job.

 

It's not that bad of a job. Just go to Zbums site for a write up on how to do it

 

Step by step directions on how to do it.

http://www.az-zbum.com/repair.dash.removal.shtml

 

Check the blenddoor actuator under the dash. I have the same problem and that was the suggestion made by the guys at ZFever in Tampa.

 

I still doubt it would ever go back together right, without having to remove it again and fix something, or reroute something that got pinched in the process. It's a horrible car to have to work inside of, with so limited space!