HIGH PITCHED SOUND WHEN CAR IS IN MOTION

  • Tiny
  • crickye2
  • 2003 Lexus ES 300
  • 124,000 miles

Whether I step on the gas or the car is in motion, there is an audible high-pitched sound that you can here from underneath the car. Mu initial suspicion is that the driveshaft needs greasing but am not sure and don't know if this can be a do-it-yourself project

Tuesday, December 27th, 2011 AT 11:02 PM

2 Answers

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,551 posts

It may be the brake pad warning sensor. Check each wheel by rotating and see if the noise is there.

Roy

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Tuesday, December 27th, 2011 AT 11:22 PM
  • Tiny
  • rasmataz
  • Member

Listen real closely to the power steering pump, alternator, and compressor and belt tensioner is it coming from one of these components?

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Tuesday, December 27th, 2011 AT 11:26 PM

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