i have a chevy silverado 2500hd 6.6 diesel and the 4x4 is now not working but it makes no noise when i put it in 4x4 high or low. does anyone have anything they think it might be??
Put truck in neutril then put in 4x4.then .then rock the truck forward.foot on gas pedal then off.foot on gas then off.rock the truck look for four wheel ights to come on
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