4x4 light flasting

1999 FORD EXPEDITION
120,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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SADAA06
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My 4x4 light is flashing while I'm driving. I tried to turn my truck off and turn it in 4-wheel low and high and them back into 4 awd and it's still flashing. I've never seen it do it before. is there a way to get it to turn off?
Oct 26, 2019 at 6:22 PM
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STRAILER
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Hello,

This light blinks when there is a problem with the 4 wheel drive system with usually is the encoder has gone out. Here is how you replace the encoder (actuator). Check out the diagrams (below). Please let us know what happens.
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Oct 28, 2019 at 1:05 PM