Transmission problem
1995 Chevy Silverado V8 Four Wheel Drive Automatic
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Hello,I own a 95 silverado and recently came to find out that my 4 wheel drive is not working,not only did the light not get lit but there wasn't any pull from the front wheels at all,I have a Haynes/Chiltons repair manual for it but it doesn't troubleshoot or explain the 4 wheel drive in it,I'd thought that it was controlled by vacume pressure but I really don't know.I've had 4 wheel drive in the past but not now.Any help?Thanks.

there is a electric actuator in the front differential that needs 12v when 4wd is activated. if it has power then the actuator is bad. they are very common for failing