I live in northern Wisconsin and maybe the linkage is frozen due to rust etc. Myself, it seems strange because the lightbulb is off until the headlights, etc. Check the vacuum reservoir box for cracks. Although the clicking behind the dash has stopped and the transfer case appears to be engaging. After reading this, I went out and checked that boot. This may be obvious but a lot of people overlook it. I would definately not rule out the swich because we've put a few in.
Went under the truck and the shaft is engaged and turning when shifted into 4wd. Do you have any way to pull codes from the gem? I'm lost, please help, we just got 2' of snow and I can't even get out of my driveway. I checked the actuator on the transfer case and there was power, so proceeded to take it off to double check it and found out that one of the magnets epoxy broke down and came loose inside the guts of the actuator and was jamming the gear, so I just odered a new one instaled it and now the 4 wheel drive works fine. Step 5 - Install the new shift motor Install the new replacement motor onto the transfer case. The 4X4 has been used alot in this truck, and always worked great. Still no sound coming from the shift motor underneath the vehicle.
If either fuse is blown, replace fuse. On the link cable there is typically a bolt in an oval shaped metal near the transmission shift lever. The spring should push the gears in, without the vac line on. Lowes, Home Depot Has connectors for fuse panel holders. Let me know what you find! Lastly, check the vacuum line to the differential and the connection to the actual transfer case actuation motor.
I was told that it could be the 2wd and 4wd vaccum solenoids on the passenger side firewall. Why you want it: Early Bronco versions have a strong housing, are small and lightweight, and can handle a fair amount of torque. If it doesn't it is a front axle engagement problem. Could anyone clear me up. If it's auto four wheel drive, a output shaft speed sensor that's out could cause it to believe one axle isn't moving and automatically lock into and keep it in four wheel low. Check that and let me know what you find.
The switch looks like it has a resistor between each contact so the readings are not a direct short. Of course, there's also the possibility the module went stupid on you and doesn't recognize wrong when it sees it. The wires leading to the position sensor are the correct voltage from what I have read. Mine is stuck in 4Hi. The 2 wires going from the gem to the position sensor send 5v and 12v.
This is typically an easy test to see if you have a bad gem. If fuse blows again, inspect circuit for short to ground. No 4wd hi light at all aside from flashing on at startup so I know the bulb is good. Wire harness, highlighted in red, must be disconnected from the motor. Have you removed the shift motor and seen if it moves when switched? These are 11, 29, 30 and 111. I've visually checked the fuses in the cab and under the hood, also checked the vaccuum solenoids behind the battery and they are connected with no corrosion.
Most the stuck in four by problems we see in the dealership could be solved with one tool. When switching into 4L I would hear a clunk and then when pulling forward it was geared down but only the rear tires would spin. If so, they will also need to be removed from the harness. Could anyone clear me up. So I bought an accuator installed that and that's not the problem. Lift and support the front of the truck so the front wheels are off the ground take safety precautions, chock wheels, jack stands, etc Key on, engage 4x4 and try to turn the front drive shaft.
If you have electric shift 4wd, start by checking if the actuator on the transfer case is getting power. The 205 is available in six different versions. The solenoids are not receiving the ground signal from the gem that they are supposed to. Any help here would be great as well. Also try moving the lever counting each click from park to low gear to make sure it is clicking into each gear. Well I replaced the Transfer case motor today. It was used in early Broncos from 1966 until 1977 and it was used in some Ford pickups.