lexusican

Have mechanical issues with my Lexus, I own an 07- es350. Everytime i put the Lexus in reverse/drive sounds like i have a huge bird under my hood chirping very loud. I replaced the serpentine belt but same issues. The Lexus is quiet when in park, but as soon as i put it in gear it starts screeching.. Anybody have any similar problems or know where to start?

mlacomb

Could be a few different things; either a bad bearing on one of the pulleys/water pump/alternator/power steering pump OR a bad tensioner not fully tightening the belt on the accessories. Take to a dealer if you have an extended warranty, or any other trusted shop if out of warranty if you can't pinpoint the noise yourself.