How to Diagnose Belt Noise on a 2010 Lexus ES350

Brian Eslick from How to Automotive www.howtoautomotive.com/ takes you step-by-step through the process of diagnosing squeak noise coming from the drive belt on a 2010 Lexus ES350.
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[@davidhutt1962]

How did it sound when you was done and what exactly was the sound before my es350 has a noise that sounds like engine bearing but I hear it mostly on the pulley side and I do be having to add coolant every once and a while. This video make sense but I just want to know the noise it would been beautiful if you showed the before and after with the noise lol at least for me lol. Great vid tho

[@blue52851]

Thank you. This is pretty helpful. What is the biggest wheel at the lower-center of this video?

[@jumbojoe55]

How many miles is on that ES350?

[@josebercedoni872]

Was the pulley that was damaged the one for the water pump? Does the coolant stain mean it needs to be replaced?

[@touche27]

Never mind I see it. Do you have a video of a 2010 ES 350 alternator being changed? That video exists nowhere...

[@jackymabborang1010]

Do you have a video on how to replace the tensioner? Thanks!

[@ratrod911]

Did you ever find one? Shops want $500 bucks to replace it....

[@touche27]

How easy is it to access the alternator? Can you go through the top?

[@HowtoAutomotive]

Hello. I don't think I have one on the ES at this time.

[@paulhenry6201]

Quick question ... on the es350, when first cranking, should the fan be on? I just cranked my 2008 es 350 and heard a strange noise, lifted hood and the fan was not spinning or its belt moving. I turned it off as I didn't know whether that would harm the car or not. Found this video and thought I'd inquire. Thanks.

[@HowtoAutomotive]

Paul Henry the cooling fan is Electric and will come on if the temperature is Hot enough or if the AC or defroster is on. This is a normal condition. As far as the noise goes it could be coming from the water pump or one of the pulleys. Hopefully this helps. Thank you for writing and watching!!

[@paulhenry6201]

Thanks a lot for the reply. I noticed that the belt to the right of the fan is not turning. It is on a horizontal pulley. I cant find a decent diagram of the engine layout to see what that belt is and does and if its supposed to always be moving or not. Basically, I'm trying to determine if I should be driving it or not.

[@HowtoAutomotive]

Paul Henry 2008 Lexus ES 350 only has 1 belt so if it's not turning don't drive it. Have it toed.

[@Tain950]

Does the car just need the water pump pulley replaced or the whole water pump assembly? Just wondering because I have the same issue

[@HowtoAutomotive]

I would recommend the whole pump and Any other accessory pulley that is the same age. It’s just a matter of time for the next one goes out.

[@Tain950]

@@HowtoAutomotive Thanks for the advice I’m extremely grateful and will be replacing all of it.

[@NaserNaser-um8wk]

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