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Discussion Starter #1
Anyone know what a "good" engine vacuum is for the 4.0L?

 

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Looks fine to me Mudderoy.
 

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Discussion Starter #4
You really are enjoying that new toy aren't ya?!
Well in a way. I'm tired of this poor gas mileage and I bought this "cheap" tool to try and fix it.

I'm pretty damned excited to have something that I can actually measure and record data. Now when I make a change I'll "SEE" the change instead of waiting a week to see if the MPH has improved.

If I'm rubbing you guys the wrong way with this stuff let me know, I can find another way of getting my questions answered. My intent is to get help, and I thought that some others having the same time problem might be interested as well.
 
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