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Four wheel drive not engaging

Tiny
COLBERT42
  • MEMBER
  • 2002 FORD F-250
  • 7.3L
  • V8
  • TURBO
  • 4WD
  • AUTOMATIC
  • 225,000 MILES
When I put my truck in four wheel drive and lock the hubs the front wheels do not turn and the back tires just spin. I have changed the fuses and replaced the motor to the switch but it still isn't lighting up or engaging.
Wednesday, January 2nd, 2019 AT 3:02 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,186 POSTS
Hello,

There are six fuses that need to be checked for power. here is a guide to help us get started with the wiring diagrams so you can see which fuses to test and how the transfer case works. There are also two relays to be tested us well.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Thursday, January 3rd, 2019 AT 10:48 AM

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