How to hook up a vacuum gauge? - JeepForum.com

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post #1 of 19 Old 11-24-2008, 10:01 PM Thread Starter
horsey2k
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How to hook up a vacuum gauge?

I was wondering how to hook up a vacuum gauge? The instruction said I needed to connect the vacuum sensor to any constant vacuum source? Could anybody tell me where to cut the hose to put a T-fitting in? Could you tell me the detail location? thank you!

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post #2 of 19 Old 11-24-2008, 11:15 PM
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Originally Posted by horsey2k View Post
I was wondering how to hook up a vacuum gauge? The instruction said I needed to connect the vacuum sensor to any constant vacuum source? Could anybody tell me where to cut the hose to put a T-fitting in? Could you tell me the detail location? thank you!
Brake booster works well if you have the right size tee. Basically any hose coming off the intake manifold has a constant vacuum.

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post #3 of 19 Old 11-25-2008, 04:48 PM Thread Starter
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I don't know much about cars, would you tell me the specific location. Is there any quarter inch constant vacuum lines? thank you!
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post #4 of 19 Old 11-26-2008, 06:20 AM
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being that you dont have a real good understanding of cars, i would say to see if you could have someone help you with it. the brake boosters vacuum line is probably 5/16" or 3/8"' hose, so you would need vacuum adapters.
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post #5 of 19 Old 11-26-2008, 11:45 AM
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Any hose on the motor after the throttle body is fine. The throttle body is the very first thing after the intake.

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post #6 of 19 Old 11-26-2008, 04:38 PM
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post #7 of 19 Old 11-26-2008, 04:56 PM Thread Starter
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thank you for all you guys
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post #8 of 19 Old 11-27-2008, 02:46 PM
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Pull off the engine cover (if you have one) by just lifting straight up. Some people like to take out the dip stick and take off the oil filler cap but you don't have to.

The brake booster is below the master cylinder and you can see the check valve that is circled in all of the shots. This vacuum hose is the one with the woven braiding around, it runs all the way from the booster up to the front of the engine and then down in front and under the plastic runners from the intake manifold. A common I.D for the hose is 11/32" but you'll need to check the size for yourself. Get a "T" that's the correct size to connect the hose back together after you cut it and tap off for your auxiliary hose. Something like a 3/8 x 3/8 x 1/4. I don't think that "T's" are made in 11/32, you'll just have to push harder to get the hose on. You can cut it where ever it's convenient, just leave yourself some working room.
Attached Thumbnails
Vacumm line 001a.jpg   Vacumm line 002a.jpg   eVacumm line 003.jpg  

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post #9 of 19 Old 11-29-2008, 05:06 PM Thread Starter
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Thanks for the pictures, very helpful.
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post #10 of 19 Old 12-03-2008, 10:42 AM
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im also considering putting in a vacuum gauge, the only thing holding me back is actually mounting the gauge in the car. does anyone have any suggestions, i was thinking of finding someone to fiberglass one at an audio shop.
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post #11 of 19 Old 12-04-2008, 12:44 AM Thread Starter
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I bought a Glowshift Elite series vacuum gauge, it's electrical gauge, so you dont need to run a electrical wire though the firewall, not the vacuum hose.
you can check www.glowshift.com,
it also comes with a gauge pod. it looks great on my compass, I will take some pictures someday this week.
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post #12 of 19 Old 12-04-2008, 08:38 AM
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i just ordered the glowshift tinted 7 color series with the universal swivel pod. where did you hook up all your electrical connections.
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post #13 of 19 Old 12-04-2008, 12:13 PM Thread Starter
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tap red wire to switch ignition wire, and black wire to ground. then put a tee connector to the brake booster vacuum hose. the vacuum hose is on the right hand side of the engine, you can see "vacuum" printed on that hose. very easy to find it.
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post #14 of 19 Old 12-05-2008, 11:51 AM
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do you have any pics of your gauge so we can see what it looks like
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post #15 of 19 Old 12-09-2008, 12:31 AM Thread Starter
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