I'll put my truck into 4H and it will take a while for that to happen. My dash will click several times than the light will come on. I can feel its in 4x4 cause I cant turn to save my life. When I go disengage and go back into 2 wheel drive, nothing happens. I have to disconnect the battery cable to get out of 4H. Also when it is in A4WD, the light just flashes.

I had the WMDs hooked up at work and said that my Gen Mod could be solving the problem. I cme on here and seen something about an oil pressure switch. could that oil sensor be my problem? I'd like to try the sensor first since it is only $30 compared to that $140 Gen mod. What should I do?

thank you