Mgreen529
Junior Member
All,
I have a 2007 1500 4.7 6 speed with a NV243 transfer case. Here is my problem, When the TC shifts I hear it go into 4WD, and I have verified this by trying to rotate the front drive shaft, it does not spin by hand when in 4wd. It does not matter if I shift to 4wd lock or 4wd low, the TC is in the correct 4WD range, and the 4WD range light continues to blink . My front axle actuator does not engage though, I have tried 2 different actuators and neither one will work. I have also checked the wiring on the actuator and have battery voltage on one wire to ground. When I drive the truck while in 4WD low it is in low range so the TC is shifting, but it seems like the truck does not think the TC shifted. I also tried to reset the TIMP by shorting the battery terminals together overnight and that did not help. I also disconnected the TC shift motor and the SERV 4WD light did come on. In June the previous owner had the truck at the dealership and they changed the front axle actuator, so I think it is a problem with the shift motor or the dash switch. Where do you guys think I need to start, or does anyone have a trouble shooting guide for the 4WD systems.
Thanks
I have a 2007 1500 4.7 6 speed with a NV243 transfer case. Here is my problem, When the TC shifts I hear it go into 4WD, and I have verified this by trying to rotate the front drive shaft, it does not spin by hand when in 4wd. It does not matter if I shift to 4wd lock or 4wd low, the TC is in the correct 4WD range, and the 4WD range light continues to blink . My front axle actuator does not engage though, I have tried 2 different actuators and neither one will work. I have also checked the wiring on the actuator and have battery voltage on one wire to ground. When I drive the truck while in 4WD low it is in low range so the TC is shifting, but it seems like the truck does not think the TC shifted. I also tried to reset the TIMP by shorting the battery terminals together overnight and that did not help. I also disconnected the TC shift motor and the SERV 4WD light did come on. In June the previous owner had the truck at the dealership and they changed the front axle actuator, so I think it is a problem with the shift motor or the dash switch. Where do you guys think I need to start, or does anyone have a trouble shooting guide for the 4WD systems.
Thanks