NBS Troubleshooting Issue : Anyone had experience with this?

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2kwik4u

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Mine has done that a few times (Assuming you have the AutoTrac as well). Typically in VERY VERY wet or snowy conditions. It typically shows when I would either had the T-Case under water, encased in snow, or driven through a VERY large puddle at speed. It's also accompanied by a "Service 4WD" message in the information display. Usually within a few days it goes back to normal once "dried out". I have read that there is a connector on the side of the T-Case that is susceptiple to water intrusion. I don't know for certain though.
 
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jem556

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Interesting...
 
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WoldD90

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Check your fluid levels, and if you have not changed it, it would be a good time to do it. Also, check the wiring to the actuator, on the transfer case, to make sure it is not corroded, loose or frayed.
 

scottg918514

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Yes, I've had it happen on both of the '03s that I've owned.
both times, no mechanical diff.

last truck, I put the tc in neutral (procedure in manual), that seemed to clear up the issue and it never happened again. "new" '03 (Z71), I put the tc in 4wd then auto 4wd and back to 2wd and it clear the neutral light, hasn't happened again.
 

bkboatnsleds

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I have had this happen to... Its generally the switch itself.. I un-plugged my switch, and plugged it back in never had a problem since..>

I have buddies who plow snow for a living and keep extra switches with them b/c they are not un-common to go out.
 

hiles

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I had this on a 03 I owned, it was only in snow/rain, so i didn't bother much about it back then, and no I've sold the car.
 

Bennie

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I had this problem too. Weird intermittent problem, wouldn't shift in or out of 4WD when it happened, service 4WD light on dash. It was my switch. They are only about $35 from rockauto but I pulled mine out cracked it open and resoldered the headed on the circuit board. Never had another problem.
 
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jem556

jem556

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2kwik4u

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I assume you guys are referring to the 'switch' located behind the dash panel? If so, why would rainy/wet conditions be a factor?

I think the rainy/wet condition problem, and the switch problem are different issues. Both CAN happen, but not necessarily at the same time.
 

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