vaccum line questions

[r.j.c.omanche]

i had some disconnected vaccum lines when i bought my truck, and most of what was connected was rotten. so i traced as many as possible, but i have a few questions on a few that were previously disconnected. basically what does this 'solenoid' do? it's mounted on the passenger inner fender. '86 2.5L, 4wd, 4spd.

 

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and what does this blue colored vaccum line hook up to? it goes down to the t-case or t-case shifter with 4 other lines.

 

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any help is appreciated.

[aemsee]

The blue one is just a vent line. At one time it had a square foam block covering the nipple.

 

The other thing is some sort of vacuum control solenoid. Just looked in a 86 FSM and saw no mention of it, but I am missing the wiring diagrams.

[aemsee]

Just looked some more. Could be your EGR/ charcoal canister solenoid?

[r.j.c.omanche]

thank you!