I recently( 3 months ago) replaced my ABC and power steering pump. I've now noticed that if I don't drive for a few days the car lowers on the left front and I have to use the level control switch to raise it back up. Is this the result of the pump not functioning correctly and does this lead to a bigger problem?
Thanks

 

Leaky valve block? I have had this problem for several years now. Sometimes I have to turn the engine off for a minute or two, restart and "use the level control switch to raise it back up" (as you call it). Had the valve blocks cleaned, good for a while, then same problem again.

 

Thanks for the reply. Did it ever stop?