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I see 5 ports. the far right big hose goes to the brake booster?
the others I have no idea? my EGR is not plugged in.
any of those go to the heater vent control selector?
any of them go to the transmission?
I would like to know with the EGR gone, what is needed. what can be plugged ?
I have 2 vacuum cans big one by battery. small one by the ignition control unit.
no gas tank vent below battery. ( charcoal canister???) Gas tank does not have the vent tube for it.
ported vacuum and manifold vacuum ,,,that looks like manifold vacuum , goes to tranny and brake booster and whatever requires manifold vacuum ,,egr I think needs ported vacuum ,,in the end it all depends on what you want to keep hooked up ,and whether it requires ported or manifold vacuum, I did away with most emissions an canisters but did choose to keep egr also mine was non a/c
Ported vacuum from the carb base would go to distributor if you have vacuum advance. Manifold vacuum from the tree will go to the C6 (for shifting) power brake booster (if you have one) vacuum reservoirs you mentioned (for things like heat/ac controls) PCV and sundry vacuum-controlled things like vacuum thermal switch by the thermostat, air cleaner flap controls, etc, EGR depending on what you want to retain. You should be able to find a vacuum diagram on-line which will tell you specifically; you can decide what you do/do not want to leave hooked up.
You mentioned the tank is not vented; make sure your gas cap is in that case - otherwise as gas is pulled from the tank, eventually air pressure can drop in the tank sufficiently to interrupt fuel feed. Numerous threads posted here about that!
Tank is vented where it fills. has the smaller hose connecting to the filler hose. hope you know what I am saying ? …
just the truck does not have a charcoal canister vent hole on the tank.
Tank is vented where it fills. has the smaller hose connecting to the filler hose. hope you know what I am saying ? …
just the truck does not have a charcoal canister vent hole on the tank.
Unsure on yours , depends on what all is original , since the fuel tank doesn't vent with charcoal canister vent hole , you need to make sure your fuel cap is the vented style , the tank needs to be vented somewhere whether thru the vented style tank to canister or a vented fuel cap
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Vacuum Tree Questions.
