Re: 1996 chevy silverado z71 electronic transfer case...
I have a chevy96 z71. when i drive it and it reaches 20 mph it sounds like im dragging something. They told me it was the transfer case. i just rebuild the transmisssion about 2 years ago
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Sounds like your transfer case in neutral. You have to engage the transfer case back into gear then shift selector to drive or reverse. When your transfer is in neutral the transmission will not operate. Good luck.
the transfer case only engages when in 4wd. check the universal joint, it connects from the drive shaft to the rear differential. it may need grease or to be replaced.
Since the transfer case is shifted via an electric motor there is not provision for mechanical linkage and I show not type of kit to convert the later cases.
That depends a lot on how your truck is equipped. GM uses several different 4 wheel systems including AWD, Part-Time 4WD, Full-Time 4WD, and ON-Demand AWD. Then there is another version used on some trucks that is a combination of 4WD and On Demand AWD. - it gets a little confusing but each system as slightly different charachteristics.
Genericly speaking, if you have the push-buttons on your dash that say "4-HI", "4-LO", and "2HI" and/or Auto-4WD , the transfer case has an electronicly-controlled stepper motor which shifts the transfer case into the selected mode. An electric solenoid/actuator then engages/disengages the front differential for 2-Wheel or 4-Wheel modes. One push of the button and it shifts the transfer case and engages the front differential.
That's much easier than the old days when you had to stop the truck, get out (Sometimes in the middle of a big mud hole) and lock the front hubs then get back in and play with the lever in the floor to get the transfer case to shift into the desired mode.
First make sure someone did not replace the transfer case with a manual shift transfer case. If not you have what mechanics call "GHOSTS" there is a miscomunication somewhere between the button and the relay this will take time to trace down get a good multimeter and a wiring diagram.
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