Reached the end of the road with my vibration
#1
Lexus Test Driver
Thread Starter
Reached the end of the road with my vibration
I've been dealing with a vibration in my driveline for around a year now. It's between 45 and 55mph, gets worse with more throttle, and is barely there when just coasting in that speed range. The Lexus tech that has looked at my car has done many things in an attempt to fix the vibration, including replacing the leading arm bushings (carrier bushings), the caster arms, rebalanced the wheels and performed an alignment. He inspected the transmission mount and says it looks good, and my idle is fairly smooth as well. I still get a clunk occasionally from the front right and a clunk from the rear right if I drive over certain bumps or take turns certain ways, but since it's not consistent, we haven't been able to diagnose those noises.
At this point, he wants to re-torque all the suspension bolts to try to fix the noises, and replace the driveshaft to fix the vibration. This is going to be very expensive, so I'm asking my fellow CL'ers, even imploring you for help. If there is anything else you can think of that could be the source that I can have the tech look at, please let it be known!
Edit: By the way, 81,xxx miles and it's a 1995 California spec.
At this point, he wants to re-torque all the suspension bolts to try to fix the noises, and replace the driveshaft to fix the vibration. This is going to be very expensive, so I'm asking my fellow CL'ers, even imploring you for help. If there is anything else you can think of that could be the source that I can have the tech look at, please let it be known!
Edit: By the way, 81,xxx miles and it's a 1995 California spec.
Last edited by sonyman; 09-05-07 at 10:14 PM.
#6
Pole Position
Join Date: Nov 2001
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Hello,
I just had my engine mounts replaced yesterday and it made a big difference. One was allready broken. Now there is no vibration at all. Its like when the car was new.
Chris
I just had my engine mounts replaced yesterday and it made a big difference. One was allready broken. Now there is no vibration at all. Its like when the car was new.
Chris
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#8
I need an alignment and hunter re-balance anyway (new wheel setup), but I also have that vibration and some less than lexus ride quality at times. My mechanic and I agreed on old shocks (118k on the car), so I'm doing the new shocks/mounts/bushings thing next.
#9
Lexus Test Driver
Thread Starter
It doesn't feel like a wheel balance issue to me. I've felt balance issues before and this feels more cyclical, rather than a lumpiness from the wheels. I doubt it's the shocks making the noises at least, because it happens even when the suspension is under very little load. I could drive over a tiny bump and it could do it, or again and have it not.
As for the mounts, the technician was confident that my idle would also be rough if the mount were bad, and he says it looks fine, but you think it's worth replacing?
Regarding the u-joint, the tech said that they do not replace them. The only replace the whole driveshaft assembly. By driveshaft bushings do you mean the flexible couplings? The tech said he's never had to replace them, but the new driveshaft assembly does include new ones.
As for the mounts, the technician was confident that my idle would also be rough if the mount were bad, and he says it looks fine, but you think it's worth replacing?
Regarding the u-joint, the tech said that they do not replace them. The only replace the whole driveshaft assembly. By driveshaft bushings do you mean the flexible couplings? The tech said he's never had to replace them, but the new driveshaft assembly does include new ones.
#11
Are the Tranny mount and rear mount the same thing?
And Park place lists it for like $33.
http://www.parkplaceplano.com/en_US/?s_ocid=pdsrch
Thanks.
And Park place lists it for like $33.
http://www.parkplaceplano.com/en_US/?s_ocid=pdsrch
Thanks.
#12
Do the engine mounts and take the tranny mount out to see if it needs done , and do the same with the rubber driveshaft ring , it sounds like the vibration wasn't always there ?
If that's the case then it's down to something deteriorating , so that most probably means rubber things .
If that's the case then it's down to something deteriorating , so that most probably means rubber things .
#13
BahHumBug
iTrader: (10)
Are the Tranny mount and rear mount the same thing?
And Park place lists it for like $33.
http://www.parkplaceplano.com/en_US/?s_ocid=pdsrch
Thanks.
And Park place lists it for like $33.
http://www.parkplaceplano.com/en_US/?s_ocid=pdsrch
Thanks.
Last edited by PureDrifter; 09-06-07 at 01:07 PM.
#15
Lexus Test Driver
Thread Starter
Do the engine mounts and take the tranny mount out to see if it needs done , and do the same with the rubber driveshaft ring , it sounds like the vibration wasn't always there ?
If that's the case then it's down to something deteriorating , so that most probably means rubber things .
If that's the case then it's down to something deteriorating , so that most probably means rubber things .