Lexus Troubleshooting Questions? Ask a Lexus Expert
Does it sound like the noise is coming from the area of the accident?
If you rev the engine while parked can you hear it?
Do you know if any exhaust parts were replaced in the accident?
It's really hard to say. Noises are a real bear to diagnose remotely. So it only makes the noise when moving, does it increase with vehicle speed?
That could be a worn motor mount. The motor mount on this car is designed to filter out vibrations, but you likely still feel and hear it at an idle, or at least while revving the engine. If the transmission mount was bad it would only be felt while driving though. You might try putting the engine in drive while holding the brake with one foot and feathering the gas with the other foot while someone watches the engine. If the engine jumps more than a few inches in ant direction while doing this in drive and then in reverse then you most likely have a bad mount.
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