I have a unhooked vacuum hose at rear of engine, it hooks to a t that has a vacuum resevoir and goes thru firewall to a/c controls. My problem is I don't know where to hook it to rear of engine, please be specific about where to find the outlet 1995 s-blazer 4.3 2wd
Rick R

 

You wouldn't happen to be able to give us any pics would you? If it were me under there trying to hook it up, I'd just kinda look and see where the hose reaches to, and see if it has any sort of natural bend to it.

 

the hose was pretty deteriorated and appears to have been hanging down from the firewall for a while. It is very hard to see behind the plenum with the distributor and all, I just wondered if there was a outlet in the rear of the plenum or in the intake the hose seems to reach to the passenger side of rear of engine.
thanks,
Rick R

 

just fixed similar problem. the hose goes to a small outlet the size of a screw. the outlet sits behind the plenum on the left about 6 inches down when looking at the vehicle. I could not really see the outlet itself, so i just felt around for it and plugged in the hose. a/c works fine now.

 

Is the outlet at the base of the distributor coming up vertically, or is it a horizontal outlet coming out of the plenum?
thanks for trying to help
Rick R

 

My 95 has a small vacuum port on the rear of the plenum pass side if you can't feel it you may have to climb up under the hood and take a look

 

it is horizontal coming out of the plenum

 

Thank you all, now I found the outlet with your help and a/c works fine.
Rick R

 

Good deal! Glad you got it fixed!