Vacuum lines + 4x4 = What the heck?! Help! :{
#1
Vacuum lines + 4x4 = What the heck?! Help! :{
Previous owner tells me that if you "hook this line to THIS line, 4wd works great!"
...
Here's what he's talking about-
Everything:
Vacuum lines. One is blocked off with a *special* vacuum line block-off plug thingy. (AKA an old fuse. )
So this one is normally blocked off... this is coming from the electro(?)-pneumatic actuator on the front axle. This one is also blocked off with a *special* block off tool... the top of the strut.
You can see it disappearing to the front axle. (passenger side)
So... What am I missing? What component isn't working properly that it needs to be rigged?
I have a full service and diagnostic manual from Dodge, and I can't find anything on this system. Anybody know where to look?
LMK what other information I can get you guys to help me out.
Thanks!!!
-Andrew
...
Here's what he's talking about-
Everything:
Vacuum lines. One is blocked off with a *special* vacuum line block-off plug thingy. (AKA an old fuse. )
So this one is normally blocked off... this is coming from the electro(?)-pneumatic actuator on the front axle. This one is also blocked off with a *special* block off tool... the top of the strut.
You can see it disappearing to the front axle. (passenger side)
So... What am I missing? What component isn't working properly that it needs to be rigged?
I have a full service and diagnostic manual from Dodge, and I can't find anything on this system. Anybody know where to look?
LMK what other information I can get you guys to help me out.
Thanks!!!
-Andrew
#4
Thanks for the 411, Chevy.
DaveO, you are the MAN! Gonna give that a good read and try to figure it out. If it looks like too much trouble/money, I'll go a different route. I'm trying to sell the truck and I want it done right.
---AutoMerged DoublePost---
Just sayin... this diagram REALLY helps..
Quick question:
Is that the vent?
DaveO, you are the MAN! Gonna give that a good read and try to figure it out. If it looks like too much trouble/money, I'll go a different route. I'm trying to sell the truck and I want it done right.
---AutoMerged DoublePost---
Just sayin... this diagram REALLY helps..
Quick question:
Is that the vent?
Last edited by Apmcrx; 07-10-2011 at 07:37 AM. Reason: Automerged Doublepost
#6
Thanks again.
I crawled under the truck and took some more pics and figured out where everything is going.
Turns out, the line that is blocked off on the strut is Tee'd into not only the Gray/Supply-to-Vac-Switch, but also the Green/Vent. Suspect?
Pics:
Labeled everything:
Unrelated... just for reference:
Revised:
You can see it from underneath. The line that "Disappears" goes to the green, and is Tee'd into the Grey/Supply.
Whatta'yall think? Vac switch?
I crawled under the truck and took some more pics and figured out where everything is going.
Turns out, the line that is blocked off on the strut is Tee'd into not only the Gray/Supply-to-Vac-Switch, but also the Green/Vent. Suspect?
Pics:
Labeled everything:
Unrelated... just for reference:
Revised:
You can see it from underneath. The line that "Disappears" goes to the green, and is Tee'd into the Grey/Supply.
Whatta'yall think? Vac switch?
#7
#8
That's what caught my eye too, because the Grey and Green are Tee'd together. Didn't seem right to me. Vent should be it's own line, grey should be it's own line...
In this picture you can kinda see what I'm talkin about...
I just called O'Reilly's... A new switch is $9. Maybe they did all this "tee" action because the switch went bad.
What I plan to do (And I'm open to suggestions, here...) is to run a brand new line from the green vent line to the vent.
Shown here:
Then I will make sure the Grey line is coming from the line that I have listed here as "Vent" -
And see if that does the trick!
Any other ideas?
In this picture you can kinda see what I'm talkin about...
I just called O'Reilly's... A new switch is $9. Maybe they did all this "tee" action because the switch went bad.
What I plan to do (And I'm open to suggestions, here...) is to run a brand new line from the green vent line to the vent.
Shown here:
Then I will make sure the Grey line is coming from the line that I have listed here as "Vent" -
And see if that does the trick!
Any other ideas?
Last edited by Apmcrx; 07-10-2011 at 06:02 PM.
#9
Looking at the diagram, there's the green line (vent) from t-case switch, and then there's a little black line labeled as t-case vent that looks like it may tee in. Maybe that's what that is.
As far as the switch goes, for 9 bucks it's probably worth trying. Also replacing that grey line isn't a bad idea either. That way you'll know for sure what you have.
As far as the switch goes, for 9 bucks it's probably worth trying. Also replacing that grey line isn't a bad idea either. That way you'll know for sure what you have.
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Apmcrx (07-10-2011)