so guys ive been chasing this problem for a while now. truck is a 1998 gmc k1500 with the np1 transfer case. the truck goes into 4lo but will not go into 4hi. when i first bought the truck a few years back it would go into 4hi no problem. as time went on it would only sometimes go into 4hi and now it wont go in at all. it only goes from 2 to 4lo
things ive replaced (dont worry i returned everything because it didnt fix the problem):
front diff actuator, transfer case encoder motor, push button on dash, and transfer case control module.
im at my wits end here and NEED 4hi for the winter. the only things i think are left are the transfer case itself or some sort of wiring problem somehow. i would just swap to a manual floor shift but the money isnt there right now and its much more work. any input would be greatly appreciated, thanks guys
things ive replaced (dont worry i returned everything because it didnt fix the problem):
front diff actuator, transfer case encoder motor, push button on dash, and transfer case control module.
im at my wits end here and NEED 4hi for the winter. the only things i think are left are the transfer case itself or some sort of wiring problem somehow. i would just swap to a manual floor shift but the money isnt there right now and its much more work. any input would be greatly appreciated, thanks guys