Mechanics

HIGH PITCHED SOUND WHEN CAR IS IN MOTION

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
Avatar
Crickye2
December 27, 2011.




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

Roy
AD

ASEMaster6371
Dec 27, 2011.
Listen real closely to the power steering pump, alternator, and compressor and belt tensioner is it coming from one of these components?

Rasmataz
Dec 27, 2011.

AD