Four wheel drive not working 2008 GMC Sierra
I have posted this before. Now just got to get into the problem with the four wheel drive not engaging. I have changed the switch no change still don't work. Checked power going to front actuator no power. Ran direct power 12volts the actuator engaged. Checked for power at transfer case got power there. Fuse has power also. Does anybody have any information such as a diagram to start checking wires from the fuse box to the front actuator? Or if there's a specific problem area with that wiring circuit such as breaking or rubbing through in a certain area.
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cmetz
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