My o5 grand Cherokee transfer case is stuck in neutral

older post this is Full time system.
you shifted to neutral in the transfer case, NV140/245

I have a 2006 grand cherokee laredo 4x4. I have only had it in four wheel drive once, and thats when i bought it. Yesterday I was just testing it out. Put it in neutral,foot on brake, Pulled up on the the leaver and nothing happened, except a service light came on. Saying"service transfer case". No matter what I tried I could not get it to work. What say you.

Could be either, a transmission problem or transfer case problem.
Someone will probably have to remove the transfer case to find out.
The torque converter, pump, valve body, or various parts in the transmission could have failed. The transfer case could be stuck between 2wd and 4wd or could have a broken gear.

You would be better off to just find a rebuilt one, they are really not that expensive. Google it, many places rebuild them. They also offer free tech advice just on 4x4 issues.

sometimes because of non moving part inside of transfer case, elements stuck or gets slower to react against changes in mode. try to switch to another transfer mode in nuetral position and stopping. after switching to desired mode move few hundred meters.

if this does not help you may need to check linkage on transfer case.

please try to switch back to 2wd mode in neutral position. then move car for few hundred meters. if this wont help you need to check the linkage mechanism on np242 transfer case.

shifter pin is broke replace pin in shifter

The correct procedure should be described in detail in your owner/operation manual.
For a 2004, 90 % sure that if it's a quadra trac you have to immobilize the vehicule, put your transmission shifter to neutral keeping foot on the brake obviously, engage the low on transfer case pulling the transfer case shifter, engage the transmission to drive
If it's a select track, normally you have to keep the vehicule moving very slowly (2 mph), move the transmission shifter to neutral, push the transfer case shifter to the right and pull it firmly. Once transfer case engaged, put back the transmission shifter to drive.
It could take few seconds to engage and disengage depending on the temperature and road condition. Do not try it on dry surface (preferable on mud, snow and wet surface). Drive at low speed because you will feel that it's very low geared.
By the way, follow the reverse process to reestablish normal mode

Hope it will help
Dan

WELL HAVE YOU CHECK THE SHIFTER CABLE MAKE SURE ITS MOVING THE LINKAGE ON TRANMISSION IF IT IS MOVING LINKAGE IN TRANMISSION AND YOU CAN PUSH THE TRUCK AROUND IN GEAR SOMTHIG BROKE IN TRANSMISSION TO MAKE SUR TRANSFER CASE ANT ISUSSE TRY PUTING IT FOUR WHEEL DRIVE IF YOU STILL CAN MOVE THE TRUCK AROUND THEN I SAY ITS TRANMISSION HOPE THIS HELPS

Is it a consistent pulsing or does it get faster as the speed goes up?