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sprinkles08
sprinkles08, ASE Certified Technician
Category: Lexus
Satisfied Customers: 21594
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Lexus ES300: 03 Lexus es 300 180k. Low pitch whine from engine

Customer Question

03 Lexus es 300 180k. Low pitch whine from engine after 300 mile weekend trip
Submitted: 1 year ago.
Category: Lexus
Expert:  sprinkles08 replied 1 year ago.
Hello and welcome to JustAnswer!

The noise is more likely coming from an engine accessory rather than the engine itself. I would expect the noise to be coming from the alternator, power steering pump, a/c compressor, water pump, tensioner or idler, etc.

If the noise gets worse when turning then it's most likely the power steering pump, either from a pump failure or low fluid.

A mechanic's stethoscope can be used to listen to each component, you can also remove the belt and spin each component by hand to feel for play, roughness, and listen for noise.

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