fulltime 4wheel light

[JeeperjohnfromPA]

ok, so I just put my manche on the road last week.

everything works good.

however, my dash light which indicates FULL TIME, for the 4wheel drive is stuck ON

I know it's not in fourwheel drive, and I want to make the light work correctly again, (it worked properly right until I put it on th road).

 

I am wondering if anyone has run into this problem before?

 

is it a switch in the linkage? or the actuator on the front axle? or perhaps a short in the electrical?

 

any advice, before I poke around figuring it out?

[mvusse]

My 4wd light used to be on when I bought my truck, It went off after a few days, but every time I used 4wd it stayed on for a few days, sometimes as much as a week.

 

Turned out to be a vacuum leak near the canister in the bumper.

[comancheman]

do you have an np 242 in ur truck?

[CWLONGSHOT]

do you have an np 242 in ur truck?

 

If not now.. it did at one time!! :roll: :D

 

CW

[BLHTAZ]

The vacuum switch on the t-case is most likely stuck open. It has happened on both of my Jeeps now. If it's a 231...you will find it as shown in this pic...

 

[JeeperjohnfromPA]

Thanks guys,, I'll check both of those,,

[JeeperjohnfromPA]

I checked all the lines, nothing looks bad, and all appears connected.

So I'll try replacing the vacum switch,

where can I get one, does NAPA have them?

is it hard to swap out?

 

any pointers are welcome

[LEAD_NOT_FOLLOW]

It's the blue hose that operates the the light on the dash. Trace it from the TC to it's source and check for cracks etc.

 

If the hose checks out OK than it's likely it's the switch as BLHTAZ has mentioned.

[jaekl]

You might as well check to see that all of the tubes are open. There are some check valves to make the light function properly. If the check valves are still good and there is a plugged line, the light may stay on. My clog was in the metal lines from the right side of the engine bay down towards the axle.