Where do the vacuum lines go on the back of the upper intake?
09-28-2007, 02:29 PM
#1
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Where do the vacuum lines go on the back of the upper intake?
Trying to get everything sorted out but having some troubles with the back of the upper intake. I have a cluster of 3 that comes off the back there. 2 small ones and one big one. WHere do those go? Also, there is another big one beside it directly into the upper intake manifold. WHere does that one go? Finally there is a T fitting on the corner. One loops around to the other side in the center, but where does the other side go? I'm confused as to what ones go to the MAP sensor (It's an 88) and what one goes to the PCV. Thanks guys!
09-28-2007, 08:32 PM
#3
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RE: Where do the vacuum lines go on the back of the upper intake?
Uhh.. Yup, thats about as perfect as you can get. THanks a lot! 
However, the one that sayus capped off on the LH side (Of the picture). Is that supposed to go to the MAP sensor on a speed density car? Thats the one thats confusing me! Thanks!!
However, the one that sayus capped off on the LH side (Of the picture). Is that supposed to go to the MAP sensor on a speed density car? Thats the one thats confusing me! Thanks!!
09-28-2007, 08:53 PM
#4
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Location: Puerto Rico
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RE: Where do the vacuum lines go on the back of the upper intake?
ORIGINAL: JohnnyK
Uhh.. Yup, thats about as perfect as you can get. THanks a lot!
However, the one that sayus capped off on the LH side (Of the picture). Is that supposed to go to the MAP sensor on a speed density car? Thats the one thats confusing me! Thanks!!
Uhh.. Yup, thats about as perfect as you can get. THanks a lot!
However, the one that sayus capped off on the LH side (Of the picture). Is that supposed to go to the MAP sensor on a speed density car? Thats the one thats confusing me! Thanks!!
09-28-2007, 09:28 PM
#5
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RE: Where do the vacuum lines go on the back of the upper intake?
Woohoo. Everything is as intended then.. Well, except I don't have that bigger one off the 3-tree post going to a vacuum tree on the firewall.. Just going ot have it going to the brake booster, with the charcoal capped off.. Should work fine I assume. I do find it strange that I thought the redundant hose from the T to the middle of the intake was to prevent oil pooling, and it seems strange to me that the pcv would exit right there where they are afraid of oil pooling though..
09-29-2007, 06:18 AM
#6
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Join Date: Oct 2006
Posts: 2,424
RE: Where do the vacuum lines go on the back of the upper intake?
on my 86 the one that says it goes to the egr goes some place else near some crap that used to hook to smog stuff and then from there someplace a line runs to the egr, wonder if its hooked up wrong from when i did my headgasket? anyone know if 86 is differant?
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