IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Horrible Squeal! !

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Old 10-15-13, 05:52 PM
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BigVu45
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Default Horrible Squeal! !

Hey if anybody can help with this horrible squeal that would be amazing!!! Is it the belt tensioner? Or the water pump? I hear a grinding noise from the water pump pulley area. But when I spray silicon at the tensioner pulley the squeal will stop.

1. Under WOT my A/C will blow warm air then go back to cold.

2. VSC warning light comes on.

I've already tried replacing the tensioner pulley with no luck. Please help! It is driving me crazy!!


07 IS350 - 73,000+ mi

https://www.youtube.com/watch?v=4DzMWbXUtNQ&feature=youtube_gdata_player

Last edited by BigVu45; 10-16-13 at 06:42 AM.
Old 10-16-13, 12:59 PM
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Gville350
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Have you replaced the belt yet?
Old 10-16-13, 03:48 PM
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BigVu45
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Originally Posted by Gville350
Have you replaced the belt yet?
The belt is new. I was spinning the water pump pulley last night by hanf and that was the only pulley giving off any noise. But I dont see how it is making that squealing noise.
Old 10-17-13, 12:08 PM
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Gville350
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The water pump is a VERY common failure part on the 2IS. I would start there; it doesn't necessary leak to be a bad unit. Others, like you, have only heard squeaking/grinding/etc.

Ask the dealership to warranty the water pump, as it is part of the powertrain warranty.

GL!
Old 10-17-13, 06:19 PM
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BigVu45
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Originally Posted by Gville350
The water pump is a VERY common failure part on the 2IS. I would start there; it doesn't necessary leak to be a bad unit. Others, like you, have only heard squeaking/grinding/etc.

Ask the dealership to warranty the water pump, as it is part of the powertrain warranty.

GL!
Thank you! It was the water pump. They fixed it and another great experience from North Park Lexus in San Antonio. Thanks for the help Gville!
Old 10-18-13, 12:29 PM
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^Awesome! I assume they fixed it all for free too. Hard to find a 2IS still with the factory water pump any more. LOL!

Mine went at 27k miles.
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