07 H2 transfer case not shifting to 4low/high. since she's stuck in normal 4wheel drive will driving like this create damage to transfer case or transmission?thanks

 

check the connector at the transfercase maybe it is loose or has corrosion also the switch might need cleaning.

 

There is also a transfer case motor which can go bad. I am on my third. Not to expensive a fix either. No damage should occur with it no shifting into 4H or 4L. .

 

excellent advice as usual, I will check the encoder motor connection. from my research on this none shifting issue on 2500 trucks there's suposed to be a group of ground wires located under body just under the driver seat there's high proability they are corroded an cleaning them fixs the none shift issue. I looked but couldn't see them.
IIRC this group of ground wires on the H2 is located around the driver side front bumper I looked there to didn't see. a image of these grounds would be a big help.
my main concern was will driving the H2 when she's stuck in the normal street driven 4wheel drive would cause more damage?
here's wheres she's stuck.

I have also tryed cycleing the button w/ engine running transmission in nuetral depressing the 4/low an 4/high all I observe is yellow blinking Light I've depressed these buttons over 100 time in hope of loosening up the switch.
I'll check the encoder wiring an report back.
can I test the wiring at the encoder motor. like test it in regular 4x4 then retest w/ 4/low button depressed? like will there be zero VDC while in regular 4x4 an 5VDC when pressing the 4/low an which wire is the buttons signal wire?

thanks again bronxteck



excellent thats what I was concerned w/ causing more damage. bc I'm not a off roader I'm a on roader.
are buying the el cheapo encoder motors for $50. or the expensive ones for over $200.?
hoping to drive the H2 a bit this summer. thanks dontheo55

 

you can also check this thread https://www.hummerforums.com/forum/h...tor-fix-42595/