What do these do?
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From: Cincinnati Ohio
What do these do?
There are two things involved with vacuum lines that I am not sure of there purpose and how to check if there good or not. There on the passanger side fender, here is a picture.
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Joined: Nov 2000
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From: sunny san diego
The black round thing is like a "reserve" tank to operate anything that is vacuum controlled (hvac servos) after the engine is shut off. Can't help you with the other thing, mine doesn't have it.
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From: Virginia
I would guess you could unplug the vacuum line from it with the truck running, and something should happen in the cab. I don't really know if it's a buzzer or a light. Let me know, I am curious myself.
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From: Cincinnati Ohio
I tried it, nothing happened.. Must be bad. Guess I need to buy a new one...
I also noticed on mine if I lose my alternator belt im screwed because thats what my vacuum plug is belted to, is that the way it needs to be?
I also noticed on mine if I lose my alternator belt im screwed because thats what my vacuum plug is belted to, is that the way it needs to be?
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From: Virginia
That's the way it is on the belt thing. Before you buy a new vacuum switch, unplug it and jump the two wires going to it and see what happens(I am still assuming the keyswitch will have to be in run).
