Not Venting (No clicks)

93mkviii

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Okay so I tried doing research on this and didn't find direct post about this. Looks like the vent at the compressor goes bad but in that case I don't know if it is clicking. My problem is that all at once my car stopped venting. The front nor the back is venting and I don't hear solenoid clicks from any corner. The front of my suspension at first was lifted 4 inches and I got the check air ride message and i realized it was lifted about 4 inches when I got home. I didn't hear clicks. The second day I had passengers and my rear suspension is now lifted also near 4 inches and it's not venting. Am i looking into a problem with the vent at the compressor? Power going to the solenoids?
 
if its going up, which it did, the solenoids are opening. not those.

i would be checking to make sure the vent is opening. maybe it got stuck or clogged? i'm not sure how it works. but it sure sounds like the vent.
 
Not a pro here, but the door plunger switch activates the venting. Could be something simple.
 
module

I'd try giving the module a few taps. Not venting could be in the abs system. The air system runs through a lot of stuff, height sensors,door switch (int lights), ABS system, speed. My 95 just bottomed out in the rear. Module fixed it. The module controls the system. A lot of stuff in it. Moisture can freeze in the system but I don't think it's cold enough where you are. Let us know what you come up with, vent or module?

Air Module.jpg
 
if its going up, which it did, the solenoids are opening. not those.

i would be checking to make sure the vent is opening. maybe it got stuck or clogged? i'm not sure how it works. but it sure sounds like the vent.

Plugged vent is a common problem, take one apart its simple how it works.

Any bag will open if you put 12 volt's to it were it plugs in at the bag.
The vent will open if you put 12 volt's to it were the compressor is.
Blue and white wire at the plug going to the compressor.

If you open bag and open vent and it wont vent the vent is plugged.
 
Is the car so high that it wants to vent and you are getting a check air suspension message? If that is the case, disconnect the air lines from one of the bags and see if it vents. If the solenoid is working but the vent on the compressor isn't, that bag will vent directly from the solenoid.
 
If its not lowering and your getting the check air ride message, the vent solenoid in the compressor is bad. I had the same thing happen back in the day to my 94. My solenoids weren't clicking either. Cause I did a lot of research on it, just for the fact the solenoids not clicking had me confused and tore the compressor down one day and the vent solenoid was badly corroded. Cleaned it up the best I could and it worked for two days. So I installed a new compressor and its been good ever since.
 
It probably is a failing vent at the compressor. However, today it vented down so I'll just have to wait until it actually fails. Thanks everyone.
 

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