1996 GMC Sierra ELECTRONIC 4X4 SHIFTING

1996 GMC SIERRA
86,300 MILES • V8 • 4WD • AUTOMATIC
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ITCHY47
  • MEMBER
  • 1 POST
It has the electronic shifting but it wont shift out of 2hi to 4hi or 4lo the light flashes but it wont go in why
Dec 4, 2007 at 8:12 PM
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PEAR69
  • CAR REPAIR CONTRIBUTOR
  • 1,482 POSTS
There is an electric device called the 4 wheel actuator motor on your transfer case. This is the thing that transfers your truck to and from 4 wheel drive. The connection may be loose or the ground may be loose or corroded. These motors also fail sometimes. There is also a similar device that locks your hubs in and out automaticaly, located on the front differential. It also may be the switch itself, these commonly fail. keep me posted
Dec 5, 2007 at 1:28 AM
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