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Dodge Diesel - Diesel Truck Resource Forums (https://www.dieseltruckresource.com/forums/)
-   3rd Gen High Performance and Accessories (5.9L Only) (https://www.dieseltruckresource.com/forums/3rd-gen-high-performance-accessories-5-9l-only-107/)
-   -   Fluttering Boost Gauge (https://www.dieseltruckresource.com/forums/3rd-gen-high-performance-accessories-5-9l-only-107/fluttering-boost-gauge-274045/)

Ace 07-24-2010 06:48 PM
Originally Posted by mpracehemi (Post 2808868)
my boost gauge will go nuts at times when jumpin' on it.....I read the posts and it makes sense that the wg is open/closing, even thou I have a vacuum wg.
I'll be waiting to hear the explanation on that one. :rolleyes:

AH64ID 07-24-2010 07:00 PM
Originally Posted by mpracehemi (Post 2808868)
I have autometer gauges also (and love them-diehard:) ). I have twins turbos and my boost gauge will go nuts at times when jumpin' on it.....I read the posts and it makes sense that the wg is open/closing, even thou I have a vacuum wg. Since I've adjusted the wg to keep closed longer, I haven't had the gauge go nuts.
How do you have a vacuum WG? Never heard of that setup, so I am quite curious.

Originally Posted by Ace (Post 2809041)
I'll be waiting to hear the explanation on that one. :rolleyes:
:rolleyes: all you want, boost is steady, valve operation doesn't effect the readings on the gauge. I have run 6 different boost gauges in 2 spots on my truck, mechanical and electronic, none fluctuate except at WG operation (especially on a 04.5-07 because of the command valve that applies ~30 psi to a 24psi WG, it slams open, then shut as soon as the command valve closes), but the boost is steady. Even DP is steady, and it has much more pulsing than intake. The only one I had fluctuate was defective.

Ace 07-24-2010 07:20 PM
Originally Posted by AH64ID (Post 2809046)
How do you have a vacuum WG? Never heard of that setup, so I am quite curious.
The things you haven't heard of would obviously fill volumes. So I take it you won't be explaining this one? [laugh]

AH64ID 07-24-2010 07:34 PM
Originally Posted by Ace (Post 2809061)
The things you haven't heard of would obviously fill volumes. So I take it you won't be explaining this one? [laugh]
Explaining no, hence the ?.. Simple feature of the English language, it allows us to ask about something with which were unclear, you should try it sometime.

Did somebody pee in your Wheaties today? Or did you forget your medication...[dummy]

Ace 07-24-2010 07:42 PM
You're the one claiming to know all about this phenomenon, not me.

AH64ID 07-24-2010 08:32 PM
Not sure its phenomenon when its how it should be.

Blake Clark 07-24-2010 09:07 PM
Originally Posted by Ghamilton (Post 2807959)
I just installed a set of Autometer Factory Match Gauges and love them with one exception. The boost gauge is fluttering when I get on it hard at about 30 lbs. What causes this? We tried two different ports, one up front and then moved it to the back and still have the fluttering. Bad gauge?

Thanks guys. I'm new to all this.

Greg.
I have the same exact gauges. Had the same exact problem.

http://i557.photobucket.com/albums/s...h_IMG_0290.jpg

Originally Posted by Ace (Post 2807998)
I cured that problem by moving the boost gauge tap from a boost bolt in the manifold to the intake horn. Not sure it that is what you mean by "we tried two different ports..."
This cured it.

Ditch the banjo bolt and tap the manifold. Being a deleted 6.7 guy I only had to tap the EGR blocker plate.

Gauge is rock solid now...

mpracehemi 07-25-2010 06:09 AM
Ace & AH64ID haven't you A-Holes ever worked on honey dues and don't use a computer for a day or 2??

You got me when I stated vacuum which should of been pressure...But the rest is what I experienced on my gauge, it doesn't flutter at all since I did and adjustment on the wg (mech.).

no_6_oh_no 07-25-2010 08:47 AM
Its the gauge and how its working. Put a snubber in and see if that helps or replace it. The Isspro gauges don't have this problem in any of the areas unless the gauge is the problem.

Ace 07-25-2010 06:44 PM
Originally Posted by mpracehemi (Post 2809209)
Ace & AH64ID haven't you A-Holes ever worked on honey dues and don't use a computer for a day or 2??
Sorry just onery, I guess. I'm working night shift now too, so that the standard excuse for my disposition this week. [coffee]
Originally Posted by mpracehemi (Post 2809209)
You got me when I stated vacuum which should of been pressure...
I knew that's what you meant. :cool:

AH64ID 07-25-2010 09:36 PM
Originally Posted by mpracehemi (Post 2809209)
Ace & AH64ID haven't you A-Holes ever worked on honey dues and don't use a computer for a day or 2??
Sorry as well.. We got derailed.

No hard feelings Ace.

Originally Posted by mpracehemi (Post 2809209)
You got me when I stated vacuum which should of been pressure...But the rest is what I experienced on my gauge, it doesn't flutter at all since I did and adjustment on the wg (mech.).
Wasn't trying to "get" you.. thought it may have been something new. Sounds like yours was opening before there was enough air to lite the bottom turbo. Simple fixes are great, aren't they!

The WG on the 04.5-07's is still mechanical, same WG as 03-04, it just doesn't see air all the time, so it can fluctuate pretty hard, otherwise should be smooth.


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