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The day I bought my 1990 Isuzu Trooper it went into 4WD fine and took it off-road for a bit just to see if it worked ok, and it did. The green 4WD light came on too. The next day, I try to put it back in 4WD High but the light never comes on. When I put it in 4WD Low the light still doesn't come on, but I know for sure it switched to low. I also know the bulb isn't bad, because I pulled out the bulb and checked it. Because of my inexperience with 4WD, my question is, if my 4WD isn't working, is it possible to be able to go to 4WD LOW and lower gears clearly engaged without actually being in 4WD? When I go to 4WD low, the gears are very short, so I know it's doing something, but just not sure if it is actually in 4WD.
Does anyone know what actually triggers that 4WD light? Is there a microswitch near the base of the shifter? Or is the switch someplace else? Thanks in advance.
Does anyone know what actually triggers that 4WD light? Is there a microswitch near the base of the shifter? Or is the switch someplace else? Thanks in advance.