Low hum or vibration when excelerating

Asked by GuruFWQSH Apr 18, 2020 at 02:06 AM about the 2003 Toyota Highlander

Question type: Maintenance & Repair

Low vibration  or humming  noise
at 30-40 mph? Does this sound
serious? Is it safe to  drive? Runs
smooth and seems to have
normal power ,idles super quiet
and  smooth? THANK  YOU  

1 Answer


Is it serious? Depends on what it is. It might just be tires worn or out of balance. Might be a worn serpentine belt. Might be something in the engine. Have a mechanic who can actually hear this diagnose it.

Your Answer:

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