[little-z]

so my parents subrban transfer case keep going to in to neutral when you try and drive it in 2 hi but will work fine in auto 4 wheel any one have any idea why this is happening

 

[Z15]

Do you know what year 'burb it is?

The weak link in these are the electronic parts that control it, they almost always are the culprit. You need to get it checked out to see which is at fault, the dash switch (common) or the control modules (less common but more expensive). Some have 3 devices that control it, the switch on the dash, a controlled under the dash and the controller in the TC. The latter 2 can run in he 100's of $$ so you don't want to replace them unless you know for sure which one is the problem. The dash switch is almost always the fault but is less than $50 (usually).

Push button switches are not very reliable, new truck have a rotary dial.

 

[little-z]

its an 06ok well maby ill try replacing the switch in the cab

 

[RobRoy]

My 04 did this. Mine was the position sencer in the motor on the side of the transfer case. I was going to replace the hole motor, but a dealer that is a customer said just do the sencer inside. The part was $90 and i gave the tech $20 to do it. Takes 25 min for a tech to do. What happens is the sencer tells the motor what gear like 4hi, lo or 2wd your in. When it goes out it gets miss alligned. There is a dot that matches up when working properly. 99% sure thats ur problem

 

[little-z]

My 04 did this. Mine was the position sencer in the motor on the side of the transfer case. I was going to replace the hole motor, but a dealer that is a customer said just do the sencer inside. The part was $90 and i gave the tech $20 to do it. Takes 25 min for a tech to do. What happens is the sencer tells the motor what gear like 4hi, lo or 2wd your in. When it goes out it gets miss alligned. There is a dot that matches up when working properly. 99% sure thats ur problem

thanks so much