I know that vacuum has been discussed ad nauseam but this is a very specific question so...
I have an 86 wagoneer. There is a "valve" , I'll call it valve A, on the intake next to the base of the oil filler tube. It has three nipples. there is a rubber piece that fits onto it and distributes three vac lines to...
Screen Shot 2017-04-23 at 4.49.21 PM.png
There is another "valve" , I'll call valve B, on the thermostat housing that also has three nipples.
One nipple from valve a is connected to one nipple on valve b. Two nipples on valve a go nowhere.
Screen Shot 2017-04-23 at 4.50.40 PM.png
One nipple on valve b goes to parts unknown in one direction and is open on the other. One nipple is open
Screen Shot 2017-04-23 at 4.52.04 PM.png
Can anyone identify these "valves" and tell me thier importance and if they would affect my engine performance. It is very rough at idle.
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