Rear diff won't engage, bad actuator??

[juhcohbee]

does anyone have any idea whats going on with my stock rear e locker? i have it in four low in neutral, it just makes this sound but it dosn't engage so the light keeps blinking.. it drives fine in 4 low while the light is blinking.. any idea would be great, I'm thinking of cleaning it.. I've never done anything with lockers, any help would be awesome!! Thanks guys
video
https://www.youtube.com/watch?v=Yi0bjvFpDFQ&feature=youtu.be

 

[Marsh99]

Try backing up in circles after hitting the locker button. Sounds weird but that is what I would do if I had not engaged it in a while.

 

[juhcohbee]

Does it have to be on dirt or is pavement ok

 

[Marsh99]

I have done it on both, but i also had the grey wire mod and could engage the locker at anytime instead of just 4 low.

 

[juhcohbee]

Did ur locker make a similar noise to mine??

 

[theferg]

That sounds like the motor can't rotate the worm gear shaft that the shift fork rides on. Something is causing it to bind up. Most likely is rust I'd think. I'd recommend pulling the motor off the diff and do a bench test on it and see what it does.

 

[juhcohbee]

yeah ill dig into it tomorrow.

 

[ricsrx]

cant you just pull the motor off the diff and test it still pluged in to the truck harness?

 

[juhcohbee]

yeah im going to try that tomorrow you should be able to see if the gear turns,

 

[juhcohbee]

Digital you were spot on, works now, all is good

 

[theferg]

Cool. Good to hear. Did you have to clean it up much? It's also a good idea to use some good electric grease on the connectors.

 

[juhcohbee]

Cool. Good to hear. Did you have to clean it up much? It's also a good idea to use some good electric grease on the connectors.

yeah it was very nasty, the part with the gear that goes into the actual diff, was seized up very bad and took a few hits with a hammer to break it loose.

 

[Marsh99]

I have always tried to engage my locker once a week to keep it moving.