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2004, Lexus ES 330 - loud vibrations over 70mph


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bcsmith5
New User

Mar 30, 2015, 6:14 AM

Post #1 of 4 (1866 views)
2004, Lexus ES 330 - loud vibrations over 70mph Sign In

2004
Lexus ES 330
Unsure of engine size... I know it's a V6 if that helps at all
~126,000


About 5 days ago I noticed on my commute to work that the first time my car accelerated to over 70 mph, the engine started to make a loud vibrating sound... louder than I've ever heard. The RPMs were not out of control, the engine temperature was in check. The vibrations will continue for the next 3-4 minutes driving at or above 70mph, but out of the nowhere, the car will return to 'normal' and the vibrations will stop. However, if I slow down considerably, then accelerate again over 70mph, I'll hear the vibrations/feel the car struggle to maintain the speed.

Normall the Lexus does a fantastic job of operating quietly, so I'm concerned that something could be malfunctioning. I visually checked the engine and I didn't see anything leaking/anything obvious (to my eyes). One thing I did notice was a lower level of engine coolant. I plan on fixing that today.... could that be the solution?

Thanks,

Brent


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Mar 30, 2015, 10:17 AM

Post #2 of 4 (1844 views)
Re: 2004, Lexus ES 330 - loud vibrations over 70mph Sign In

Without being there to drive it, it is hard to say what is going on. Engine could have a misfire issue, but that is a guess.

Is the check engine light on? If so, have it scanned and write down the trouble code numbers.

If it is low on coolant, you probably have a leak somewhere. Have it pressure tested when the engine is cold to see if there are any external leaks.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


bcsmith5
New User

Mar 31, 2015, 10:42 AM

Post #3 of 4 (1821 views)
Re: 2004, Lexus ES 330 - loud vibrations over 70mph Sign In

The 'check engine' light has not yet come on.

I topped off the coolant yesterday. I will monitor over the next few days.

As far as the vibrating, I felt it again when I accelerated on the highway this morning... The car struggles to accelerate, it seems to be dragging its feet. But, once it operates at or above 70 mph for a couple minutes, it hits a steady state point where it starts running quietly/smoothly again.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Mar 31, 2015, 4:44 PM

Post #4 of 4 (1807 views)
Re: 2004, Lexus ES 330 - loud vibrations over 70mph Sign In

Maybe it is time to have your mechanic take it for a test drive to feel exactly what your feeling. There are many possibilities for your issue.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.






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