StuInTheRockies

I took the advice of another poster and reset the height by going to the low setting, letting it lower, going to high setting, letting it rise, then driving away. It reset itself to have about 2" between stop and axle. I know I did this once and it reset to be down on the stops at least 1 time (overnight). However, I did this again 3 or 4 days ago and the ride height has remained at that level since. Not sure what is going on with it, but if it stays put my problems seems to have gone away.

I have the same rough ride problems mentioned here in a few posts. Trying to get to root cause. I did a height reset (set to low - wait, set to high - wait, drive off) and see that rubber bumper to axle gap is somewhere between 1 and 1.5". Rides okay in that situation. Not sure why/how but height lowers itself (example is overnight last night) until bumpers are resting on axles. Does this mean my airbags or compressor are leaking? Didn't check to see if height reduced to same on both sides but will check this next chance. Can I infer a different root cause if both sides drop the same than if only 1 side drops over night? Also, when I reset height, is 1" - 1.5" between axle and rubber stop/bumper about right? Doesn't seem like much shock travel. mann777 - On another post on a similar topic, you referred to p/n 48910-60020 and described it as a solenoid. When I searched that part on toyota parts zone it indicates that p/n is the compressor ($470). Did you mean the compressor or perhaps there's a different p/n for the solenoid itself? The ride height sensors look to be $270ish, so I was hoping the solenoid was potentially a cheaper part that would be worth pursuing as root cause.