AHC residual weep and suspension conversion opinion.

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Joined
Aug 3, 2016
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14
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301
Location
Mosman, Sydney.
Hi guys,

As I posted last week, I had my AHC ripped out and Tough Dog suspension put in for various reasons and long term reliability concerns. The people that did it capped off my AHC lines but the passenger side left still drips 1 or 2 drops every time I park the truck. Would this be residual fluid in the lines or would it continue to come from the reservoir?

I had everything left intact so as not to light up the dash like a Xmas tree. I'm wondering maybe if I drain the AHC fluid reservoir it will eventually come to a halt, that said though I am wondering since the shocks are gone are the lines still connected to the reservoir?

I probably should have had the shop drain the reservoir but I was just so pleased to find someone willing to tackle the job since 3x ARB outfitters and various other 4x4 places told me to hit the road that I didn't mention it. I also have the minor issue of the rear end a little higher than the front as these guys did not want to damage my CV's. Even though I have a brand new heavy duty Tortion bar, so at Landcruiser Phils advice I will get it wound up in due course.

As for the ride with the Tough Dog 2" Ralph front shocks and Adjustables at the rear, well....It is hard to describe. It is almost like all the AHC modes have been rolled into one. It corners like it is in AHC sport mode but if you hit a bump mid corner is not super hard like AHC sport. The ride is definitely firmer but you don't get the residual rocking motion over bumps and the pitch and yaw is eliminated substantially. I miss elements of the AHC such as the ability to raise the ride height but once I get my front end up a little via tb crank I don't think I will. The pillowy Cadillac ride of the AHC is great but the truck feels more alive with this suspension. I'm struggling to describe the change accurately for everyone but it is a definite improvement. I also feel a lot more secure on twisty roads and in the back of my mind the sure and certain knowledge that this setup is the right way to move forward with a 12 year old truck.

Now, any tips on draining the AHC reservoir? Also an empty reservoir would not lead to Dash lights coming on would it?
Screenshot_20160913-210141.png
 
I performed the AHC delete myself with extreme prejudice. Hydraulic lines, everything was removed from the truck. The "Christmas tree" you refer to, is one light - the "off" blinks on the AHC status area on the right side of the gauge cluster. If you call that a Christmas tree, that's the saddest Christmas tree ever, haha. That can be fixed by simply reaching under the dash and unplugging the AHC ecu, which is its own separate unit. No more blinking. Just remove it and clear the way for dual batteries in the future!
 
I performed the AHC delete myself with extreme prejudice. Hydraulic lines, everything was removed from the truck. The "Christmas tree" you refer to, is one light - the "off" blinks on the AHC status area on the right side of the gauge cluster. If you call that a Christmas tree, that's the saddest Christmas tree ever, haha. That can be fixed by simply reaching under the dash and unplugging the AHC ecu, which is its own separate unit. No more blinking. Just remove it and clear the way for dual batteries in the future!

Haha thanks mate, that is good to know. I thought VSC lights and everything were going to chime in. Is there a thread on removing the AHC ECU? Where is it's exact location under the dash, i'll go and pull it out in the morning. I will also drain my reservoir.
 
No worries. Here are the pictures I used to find mine. It's the second picture that is zoomed in on the molex connector. AHC Removal

Good Luck!
 
No worries. Here are the pictures I used to find mine. It's the second picture that is zoomed in on the molex connector. AHC Removal

Good Luck!

Oh god, Those pics don't inform me what to pull lol. I feel like Danny Glover in Lethal Weapon 3 when Mel is disarming the car bomb. Red wire, blue wire, no red wire.
images-1.jpg
 
The connector circled in Red. Just Yank it out. Done.

KIMG0584.jpg
 
Haha, no worries sir! Happy to help. I do, and I've been meaning to upload them. I'll be sure to copy you when I get them up!
 
LX470Mack did you remove the ECU connection?

I've just had delivered new shocks and springs for AHC removal next weekend.
 

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