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4×4 not working

Tiny
BRENT RAMIREZ
  • MEMBER
  • 2000 CHEVROLET TAHOE
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
My 4×4 is not kicking in. When I push the 4hi the light will flash for a second then go back to 2hi, but when I push the 4lo the light will flash then go to 4hi and stay there, but the 4hi is not kicking in still. When I push the auto 4×4 the light will flash and then stay on but the 4×4 still won't engage.
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Thursday, July 18th, 2019 AT 5:26 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,833 POSTS
Hello,

This is common when the actuator motor goes out. Here are the instructions and diagrams below to help you do the repair. Check out the diagrams (below). Please let us know what you find.
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Friday, July 19th, 2019 AT 5:40 PM

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