2004 LX470 with 255000 on clock. Absolutely no rust on/under car. Daily Driver but does get regular rough off road use. AHC has been working perfectly. Change in heights between low/normal/high have allways locked completed in less than 14 seconds. I have always changed out FLUID on time with toyota AHC fluid. Also adjusting torsion bars for proper pressures on accumulator etc. Last change was about 10,000 miles ago. Last week the ride started getting out of control bouncy... like beach ball bouncy. no difference in ride between soft ride or sport ride selection. The other odd thing is that when I adjust the height, either up or down it completes the height change in about two seconds, or less. No apparent loss of fluid anywhere, but I do need to clean off a lot of mud to properly inspect. No unusual noises while pump is running. I have the lexus paper service manuals (all million pages) and cannot find any diagnostics info. Only disassembly and installation specs. Any Ideas from the group? Thanks in advance for any help!
