While searching for CCU posts I found a comment that the monovalve doesn't work properly. My aux pump seems to be seized up... so I would like to know whether everyone disagrees with this.

I shut down the car and ran a + and - jumper from the battery straight from the aux pump, not even a sound, felt it, no vibrations or anything.

I think my monovalve isn't working correctly. When I remove it from the system and hook it straight to the battery the piston VERY SLOWLY moves out just a tiny bit. I tried moving around the casing around the electro magnet and when I did that it did come most of the way out, but VERY slowly. There was no *CLICK* like people say you should hear.

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1985 MB 300D/T

Fell off the WVO bandwagon when people started trying to charge $2.50 a gallon for dirty vegetable oil.