RT4WD problem

hey,
I was working on my wagon today and wanted to put my wagon in the 4WD mode since the previous owner had put it in FWD. after I loosend the bolt a bit I tried to slide the orange lever to the left but it wont go all the way to the left and always pops back to the right. Is there a certain trick to it ? Or can it be because the car has been drivin alot of years in FWD that it wont go back in 4WD.
I tried to call the previous owner to ask him how long it's been in FWD but I can't reach him at this time, I think he's on vacation.
Hope you guys can help me out.
I was working on my wagon today and wanted to put my wagon in the 4WD mode since the previous owner had put it in FWD. after I loosend the bolt a bit I tried to slide the orange lever to the left but it wont go all the way to the left and always pops back to the right. Is there a certain trick to it ? Or can it be because the car has been drivin alot of years in FWD that it wont go back in 4WD.
I tried to call the previous owner to ask him how long it's been in FWD but I can't reach him at this time, I think he's on vacation.
Hope you guys can help me out.
Comments
oke thx, I'll try that in the morning.