The Mighty 258 > Emissions/Vacuum Systems

4x4 vaccum diagram?

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rmick:
http://amceaglesden.com/guide/Select_Shift

Mr_Roboto:
A few questions,

1-where is the vacuum resivoir typically at?
2-where does the line for the awd systems connect in?
3-does the resivoir connect straight to engine vacuum on the other side?

The systems underhood were significantly altered and I am trying to piece things back together. It looks as if the red/green/white lines are still there.

Illeagle1984:
1. The vacuum reservoir on mine is bolted to the driver side inner fender, between the coolant reservoir and shock tower.  Most people would say it looks like a coffee can.  There is a pic of my engine bay here for reference: https://forums.amceaglesden.com/index.php?topic=47004.msg362957#msg362957 (shameless plug I know lol) If you flip the pic right side up, it's the little round can in the lower right of course.

2.  I'm not sure exactly where.  I'm headed to the shop later today, I can see where mine are plumbed in.  I can say that I disconnected mine and ended up hooking it back up.  Without it, the transfer case would neutral out sometimes after an extended high-RPM blast.  Your results may vary, I'm sure I have less vacuum available with my big ol' Holley on top.

3. Yes.  See #2, I'll check later where they are routed.

If you're looking for other ideas to get you by, I thought I saw somewhere here where a guy made a manual shift lever like Jeeps have for the t-case.  Or ya could just disconnect the vacuum motor and keep it in 4wd all the time.  Won't hurt a thing as long as your tires are all the same...

Mr_Roboto:
Thanks!

I think I will wind up in the same boat honestly. I yave a 500cfm afb and supposedly a cam. Mine is a bit different than your coffee can but same idea.

There is a small line going into the car, but I think that is the heater water valve.

MIPS:
Mine is a plastic canister that bolts on the passenger inner fender below the ignition module. It has a large diameter hose run over the valve cover and to a port for Manifold vacuum close to the firewall.

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