First I like to thank all of you that provide very useful info to this forum. At many occasions your posts have been of a great help to me. I only register today for the first time.
Here is my problem:
The 300TE doesn’t self adjust. Its low in the back, but it doesn’t seem to be all the way down. Maybe the springs are holding it up a little. Putting some weight in the car brings it lower. I don’t know if the problem is from the pump (124-460-15-80) or the self leveling valve (124-320-00-58).
The pump is working because with the engine idling, when I open the bleeder at the self-leveling valve, fluid is coming out, but there is no fluid going to the return line at the tank. There is fluid in the holding tank and it looks clean. I have read in previous posts that the fluid circulates all the time, except for when the level is in fill position, which makes sense. So if the fluid doesn’t return to the tank, does it mean that the pump is not pumping enough? Do pumps behave this way? I’m trying to avoid change it, and then find out it was an internal leak at the self-leveling valve or something else minor that I don’t know.

I did change the leveling valve with one from a junkyard, but it looks as my original was in better condition (tighter at the level) than this one. When I removed the supply line to the valve there was pressure in the line. Also the car was slightly higher with the old valve. It could be that the old valve was holding some pressure from the check valve before was removed.

I did operate the lever manually but the height didn’t change. So if the lever is in fill position and there is an internal leak at the valve, theoretically, would the fluid return to the tank as if it was in the neutral position?

I have read all a can read, but I’m lacking experience. I hope someone can help me diagnose this problem.

Thank you,
Michael