bump for ways to see if the acd pump is getting power..

 

No one knows how to test the ACD pump? I still can't hear it run ..

 

omg thanks bro, im actually doing the clutch in my car right now

 

bump for this answer.. TTP? I took the car to the dealer today and they couldn't get any response from the ACD pump using the MUT tool.. The pump is not kicking on .. It has to be a fuse or wiring harness connector or wiring or some sort.. The pump was perfectly working before I tore down the car and we did not mess with the ACD at all..

 

Well it seems like you are troubleshooting in the right direction. I don't know of any other way to test the pump. There has been talk of tapping into the power line for the ACD with a switch and forcing it to pump or hooking up some sort of power source to it to force it to drive throughout this thread but I haven't seen anyone reply if they have actually done it.

If the pump was working before and you haven't done anything to it except mess with the wiring when you moved the battery then that is where I would be looking. Verify your wiring is correct, check all your fuses/relays pertaining to the ACD. If you have the know-how, get ahold of a voltmeter and check to see if you are getting voltage at the pump with the ignition on or ignition on and pedal down. If everything checks good then maybe the pump just went bad. Maybe it could have seized up sitting for a year with no fluid? Who knows? Good luck with troubleshooting though.

 

It has to do something with the fuses or wiring or something electrical related.. I highly doubt the pump just seized up and stopped working.. the pump still had fluid in it while the car sat for a year.. It didn't completely drain it or anything.. Mitsubishi couldn't communicate with the Anti Lock Brakes OR the ACD today.. so It has to be something electrical related .. Just don't know what it could be at this point.. Electrical wise, 3 gauges were hooked up.. and that was it.. :/

 

Hi,

Just recently change the ATF fluid in my JDM evo ix from reputable workshop in Brunei.
The thing I wanted to ask,
1. Is ACD is somewhere on the front diff.?
2. Is AYC is somewhere on the rear diff.?
3.Is AYC connected directly with ACD via somesort of piping. Is it sharing the same fluid reservoir. So if someone bleed the ACD will this effectively bleed the AYC also?

Please someone need to clarify this.

 

There are two relays by the passenger side of the firewall. If your looking and the car standing in front of it its the on to the left. Disconnect it and you will see that you can jump the relay and that will turn the pump on. obviously you can then check at the connector of the acd pump if power is getting to it and if power is getting there from the relay that means the pump is bad. I would show pictures but im new to posting so i dont know how to post pics.

 

maybe this is just a dumb question/idea...

but why cant one just take the cap off, open the bleeder and have a pneumatic fluid evacuator hooked up to it and just have it suck any air out thats possibly in the system????

better yet....why not use the fluid evacuator WHILE using the method of turning on the pump as described in the original post.

 

Any thoughts on using a pneumatic fluid evacuator??? I'll follow up since I'll be doing this Sunday on my MR since i'm right in the middle of doing my clutch

 

I also had thought of that but didnt try it and dont know if the pump would have to be activated for the all the air and fluid to be forced through first before doing that. So maybe doing them both would be a good method.

 

intresting

 

yeah thats what im gonna do... ill update this thread after we do that tomorrow. might help and make the process a little easier. thank god i bought 3qts of that fluid!!