Low Rumble at 60-65 mph
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Joined: Sep 2001
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From: Virginia
Low Rumble at 60-65 mph
I had a very bad vibration on my 2005 LS430. Found out my old mechanic forgot to mark the driveshaft before removing to replace the center carrier bearing. A driveshaft shop was able to get it balanced. Replaced this newly driveshaft with new carrier bearing back on my car.
Now I just had a low rumble under throttle between 60-65 mph. Sound is similar to when you roll your back glasses down. Not nearly as loud but it is the same low buffeting rumble that you can feel. Please note. It is possible to live with.
Decided to replace the driveshaft with another one. Replaced it with a used one and the rumble is still there just like before.
My conclusion is that the rumble is not from the driveshaft of any of the driveshaft components.
Amsoil 90w-110 gear oil in rear end. Transmission fluid just changed with new Toyota WS.
What would be your next step?
I thought about road balancing the tires which only have about 2k miles on them. But the fact the noise is most pronounced under load makes me think that balancing the tires would be a waste of money. Oh, the right rear wheel bearing was replaced by
a Lexus mechanic with a OEM Lexus bearing assembly ($350). Also, the transmission mount was replaced with OEM Lexus part as well.
Now I just had a low rumble under throttle between 60-65 mph. Sound is similar to when you roll your back glasses down. Not nearly as loud but it is the same low buffeting rumble that you can feel. Please note. It is possible to live with.
Decided to replace the driveshaft with another one. Replaced it with a used one and the rumble is still there just like before.
My conclusion is that the rumble is not from the driveshaft of any of the driveshaft components.
Amsoil 90w-110 gear oil in rear end. Transmission fluid just changed with new Toyota WS.
What would be your next step?
I thought about road balancing the tires which only have about 2k miles on them. But the fact the noise is most pronounced under load makes me think that balancing the tires would be a waste of money. Oh, the right rear wheel bearing was replaced by
a Lexus mechanic with a OEM Lexus bearing assembly ($350). Also, the transmission mount was replaced with OEM Lexus part as well.
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From: Milwaukee, Wi
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Joined: Dec 2005
Posts: 2,709
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From: 565 St Peter NOLA
When I bought my 430 it had a noise similar to what you describe. I was CONVINCED it was a real wheel bearing. I only heard it on the highway at certain speeds. I could have lived with it but I wanted to be thorough and investigate for the negotiation process. The dealer (small independent) had their mechanic take a look. He said it was a bad rear strut which I didn't believe. Within the week of buying the car I bought new tires. I asked the tire shop to take a look and they confirmed it was a blown strut. They were right, I was wrong, and I replaced the rear struts about a week later...
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