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-   -   front axle will not engage (

jpinthewoods 04-17-2013 04:22 PM

front axle will not engage
1999 ram 5.9 liter the np231 trans case works however the indicator light for 4wd and the front axle will not engage i have found a what i believe is a vaccum lune from the actuator ontop of the axle is currently just hanging in the engine bay looks like it has been cut and i have no idea where it supposed to go i just bought the truck and i has had a rough life many parts have been removed or replaced long before me so i am in the process of fixing what whoever did wrong or halfa@@

MACKEYAUTOREPAIR 04-21-2013 07:11 PM

From the actuator on the t case, there's 4 vacuum lines. 2 go to the front right axle to couple it when you shift into 4wd. 1 is a vent, and one goes up to the engine for vacuum supply. I suspect thats the one youre missing, if I get a chance ill look at mine to see where it hooks up. It has a check valve, and that may be where iy unhooked, so if you can find that it will help.

SScott 05-28-2013 09:02 PM

Any updates or place to get the vacuum diagram? Thanks!

Wh1t3nukle 06-05-2013 10:28 AM

Here is a picture where I extended my vac lines on the front axle. This view is looking up towards the passenger fender.

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