well i figured that but would i like have to tap into the intake or something like that?

did you get your mopar gagues from the dealer or ? i like how yours look alot merc

 

There should be an available vac port on the side of your intake, should have a black rubber plug on it, just remove the plug and put on the vac hose from the gauge.

Yes I just order though the dealer, I give them the part numbers.

http://www.jimsautoparts.com/gauges.htm

 

i'll look for that plug... i really don't think i have one i just had the intake out last week when i did my plenum/kegger mod

i'll take a look in the morning

 

And many, many other things too. A vacuum gauge should be in everyone's basic diagnostic tool kit. Having one permanently installed and knowing what it's telling you can head off some expensive problems by calling your attention to them when they're still cheap fixes.

 

Make sure they're back lit too, I hate mine at night

 

Such as?

Thanks

 

could probably tell you if you have a blown plenum or if you have a broken vacuum line. is the 4x4 still vacuum controlled? i have also heard they can help you drive more fuel efficiently.

 

This might help you find them.

 

It's a long list, but right off the top of my head: Burnt valves, weak valve springs, sticky valves, worn valve guides, bad valve stem seals, leaking piston rings (or really worn out motor oil), ignition problems, restricted exhaust system, sloppy timing chain... the list goes on. It's well worth having and learning to proficiently use a vacuum gauge, alongside a tachometer, and in conjunction with a compression tester. You can discover a lot about what's going on from the pistons upward in an engine with just those few cheap tools.

Even if you don't learn all about vacuum testing and results interpretation right away, if you have a gauge permanently connected and become accustomed to what's normal for your engine you can spot not-normal even before you get enough seat of the pants feel to become concerned.

Check this out for a quick introduction with cool animated GIF's.

 

I'll never drive w/o a vacuum gauge again.. it is pretty dang handy for saving fuel..