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Old 10-03-2018, 05:31 PM
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Originally Posted by Ricky Bobby View Post
In almost 8 years on this forum I've never seen the valve body leak under the car.

Your front bags are new, the rears are original we suspect. Your compressor is new. We suspect the level sensors are original?

Read the codes it is throwing in the EHC module as you said the fault is on the dash. Report back to us.

I've also seen the module itself go bad, the part # that it was revised to ends in #999 I believe, its not a cheap part.

You have 3 items to check out:
-Rear bags (however you said after you ran the calibration routine it started sagging in the front and the rear holds air, which makes me think its ok)

-Leveling sensors (and the "linkages" that hold them on the control arm, they are $6-7 but are a ball/socket joint that sometimes seize up) - one level sensor in front and one in rear
-EHC2 control module (if needing to replace its about $600-700 and needs to be coded)

IF the error is on the dash, read the codes and post them.
What isn't a cheap part on these savs?
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Old 10-03-2018, 10:05 PM
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Originally Posted by upallnight View Post
What isn't a cheap part on these savs?
my wife says that there should be a slot in the roof like a piggy bank

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Old 10-16-2018, 02:05 PM
Join Date: Dec 2008
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So after replacing the Valve Body and re-calibrating the system it worked but by the time i got home the inactive suspension msg reappeared and by the next day the left front went down and then the whole front went down the rear is still staying up. Why doesn't the pump try to pump it back up? I have tried everything imaginable nearly whole system is new.

The only code we had was some implausible 64 code.
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Old 10-17-2018, 09:13 PM
Join Date: Oct 2011
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I have never seen a valve body failure. Also have 2 axle air. Get under the car and check the level sensors. As a matter of fact, disconnect the arm and move it down, looking from front towards rear of car, arm should go clockwise toward 5 ocklock position. See if the car will compensate and lift up. It should work instant. System has to have error codes reset for you to be able to do this.

I agree completely with RB above.

Bags, sensors, sensor arms in right position, pump, voltage, pump temp, pump run times, ehc2 module, and I have see one where the yaw sensor under the arm rest causes some dumb shit. But that one is associated with getting the tire light for no reason.
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