Ride quality
#16
Unfortunately my next closest Lexus dealer is 1.5 hours away and this diagnostic process will likely be lengthy. I have to give my Lexus dealer an A+ for effort - they have had it 5 times, the latest for 3 days of evaluation. But the results are not there yet. It is mystifying to me that the Service Manager (who has personally worked with me through the whole process) seemed to honestly report that new LS460's ride the same or worse.
The bottom line is - what could cause me to feel (in my seat) every possible road imperfection and slightest undulation? It is like the shock absorbers are absorbing nothing.
The bottom line is - what could cause me to feel (in my seat) every possible road imperfection and slightest undulation? It is like the shock absorbers are absorbing nothing.
#17
Unfortunately my next closest Lexus dealer is 1.5 hours away and this diagnostic process will likely be lengthy. I have to give my Lexus dealer an A+ for effort - they have had it 5 times, the latest for 3 days of evaluation. But the results are not there yet. It is mystifying to me that the Service Manager (who has personally worked with me through the whole process) seemed to honestly report that new LS460's ride the same or worse.
The bottom line is - what could cause me to feel (in my seat) every possible road imperfection and slightest undulation? It is like the shock absorbers are absorbing nothing.
The bottom line is - what could cause me to feel (in my seat) every possible road imperfection and slightest undulation? It is like the shock absorbers are absorbing nothing.
It just seems a bit too unsettled for a car this nice. And at times, after going over a more pronounced bump, it feels as though the tires are skipping along, the whole car seems to shudder. It's like there is no damping at all for any sharp bump, but the suspension seems to be working otherwise. It rides level and at the correct height, it doesn't go all bouncy when you put weight on a fender, and it doesn't drift all over the place. On pristine asphalt it's nice and smooth, even at 80-90 mph. But it gets very unsettled if the surface isn't like new. I'm baffled.
If your car doesn't have air suspension, then I'm not sure why the behavior would be similar. But I'm certainly going to be watching this thread to see if you make any progress figuring this out.
Good luck,
Charles
#18
Unfortunately my next closest Lexus dealer is 1.5 hours away and this diagnostic process will likely be lengthy. I have to give my Lexus dealer an A+ for effort - they have had it 5 times, the latest for 3 days of evaluation. But the results are not there yet. It is mystifying to me that the Service Manager (who has personally worked with me through the whole process) seemed to honestly report that new LS460's ride the same or worse.
The bottom line is - what could cause me to feel (in my seat) every possible road imperfection and slightest undulation? It is like the shock absorbers are absorbing nothing.
The bottom line is - what could cause me to feel (in my seat) every possible road imperfection and slightest undulation? It is like the shock absorbers are absorbing nothing.
We can argue about the level of ticking the engine makes as it is there but what you are describing is unacceptable and not a feature of this car, it is clearly a defect that most of us don't have.
#19
Pit Crew
Thread Starter
Cold pressure is 34 psi. Goes up to 38 psi when hot.
#21
Pit Crew
Thread Starter
Does your car have the air suspension? I looked through the thread and didn't see any reference to air, so I thought I'd ask. I have a 2007 L model with air suspension, and your description of how the ride feels is very similar to what I've been feeling since I had the front control arms replaced. I don't know if it was behaving poorly before the work was done and I am only just now noticing it, or if tightening up the front end has made it more obvious. But it certainly seems different now, and much like you describe.
It just seems a bit too unsettled for a car this nice. And at times, after going over a more pronounced bump, it feels as though the tires are skipping along, the whole car seems to shudder. It's like there is no damping at all for any sharp bump, but the suspension seems to be working otherwise. It rides level and at the correct height, it doesn't go all bouncy when you put weight on a fender, and it doesn't drift all over the place. On pristine asphalt it's nice and smooth, even at 80-90 mph. But it gets very unsettled if the surface isn't like new. I'm baffled.
If your car doesn't have air suspension, then I'm not sure why the behavior would be similar. But I'm certainly going to be watching this thread to see if you make any progress figuring this out.
Good luck,
Charles
It just seems a bit too unsettled for a car this nice. And at times, after going over a more pronounced bump, it feels as though the tires are skipping along, the whole car seems to shudder. It's like there is no damping at all for any sharp bump, but the suspension seems to be working otherwise. It rides level and at the correct height, it doesn't go all bouncy when you put weight on a fender, and it doesn't drift all over the place. On pristine asphalt it's nice and smooth, even at 80-90 mph. But it gets very unsettled if the surface isn't like new. I'm baffled.
If your car doesn't have air suspension, then I'm not sure why the behavior would be similar. But I'm certainly going to be watching this thread to see if you make any progress figuring this out.
Good luck,
Charles
#22
Pit Crew
Thread Starter
#23
#24
Charles - my car does not have air suspension. But, the control arms were replaced as part of the CPO inspection process (done just before I purchased it). My car does behave like yours - when I hit bumps, the car jumps like I am driving a truck with a solid rear axle. The more I think about what I am experiencing, it is more like some kind of suspension issue. It does not get bouncy like you say, it just seems like the suspension/shocks/struts do not absorb small or large road undulations or imperfections very well.
It is possible that the installation of the new control arms was not done correctly. I would have them inspected and every bolt re- tightened with a torque wrench.
Last year I had a hard jarring suspension on my other car that felt like my rear end was solid which I could not locate. I thought it was a bad strut but it turned out to be that one of the bolts holding a control arm walked and caused the issue but i would not have noticed it until I checked all of the bolts.
Last edited by Devh; 04-21-15 at 06:51 PM.
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