All wheel drive will not engage

2000 CHEVROLET ASTRO
181,140 MILES • 4.3L • 6 CYL • 4WD • AUTOMATIC
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JESSE LEW
  • MEMBER
  • 1 POST
Will not engage in all wheel drive.
Feb 17, 2018 at 5:23 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good evening.

I attached a wire diagram for you to view. check the three fuses that power the system to be sure they have voltage on both sides of the fuse. Check out the diagrams (Below). Let us know what happens and please upload pictures or videos of the problem.

Roy
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Feb 17, 2018 at 5:48 PM
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