As the title states I simply cannot get my ACD to bleed. I've tried the usual two person key turning throttle down system (worked for me a couple of years ago) and a vacuum pump on the transfer case nipple. The key method does nothing at all, I just see the fluid level in the hose rise and fall a little. The vacuum method just splurts out drops of ATF endlessly. I've had the ACD pump apart three times to ensure it's put together correctly and everything looks fine.

All I can really do at this point is pull it off the car yet again and try to see if I can't get it bled and pressurizing on a bench and then installing it. Does anyone know what size threads I will need for a gauge adapter? Thanks.

 

Are all three lights still lit up ? I would double check your connectors , fuse, etc shud be able to bleed it with the key method.

 

The pump kicks on and makes the usual noise for 20 or so seconds before shutting off and giving me the three lights. Not a drop of fluid comes out.

 

if the three lights are coming on then your systen still has a fault or an issue.

 

It's going to do that when bleeding regardless because it will never get up to pressure.

 

absolutely not, thats not how it works. Check this out it will help you find your fault.