4 Wheel drive wont engage

[swampslider]

Correct.

 

[99Vortec]

I'm guessing the 4x4 wires to the Front axle have been inspected and are in good shape?

 

[swampslider]

Yes. I even cleaned the terminals of the plugs.

 

[Jerky Arm Ape]

Is there power coming to the actuator plug end?

 

[swampslider]

4 to 5 volts in the blue wire. The rest are 0.

 

[sgtpoliteness]

I'm going to hijack this thread real quick. =)

I had a faulty actuator in my newly purchased '96 Tahoe, pre-1/96. Installed new actuator, and now the light stops blinking but there's a real loud noise like something is partially binding or only half engaging. Do I need to reset the lever inside the diff?

I changed out the old fluid to new, Lucas gear oil. I do have it running up on the lift so none of the wheels are on the ground.

Thanks!

---------- Post added at 12:40 PM ---------- Previous post was at 12:22 PM ----------

Ok, answered my own question. The front wheels need to be moving (duh) to 100% engage. Drove it outside in the snow. Bitchin'.

 

[SunlitComet]

Just needs a tad bit of movement to get it to engage.

 

[sgtpoliteness]

Yeah, I was a little freaked at first. Thank you!


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