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4l80e sounds like a hydraulic wine really loud

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Old 09-26-2015, 02:58 PM
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Default 4l80e sounds like a hydraulic wine really loud

I had my trans built last year and once installed the car had a really loud wine or hydraulic hydrostatic noise when the car is moving 30 and up its really loud at 60 .. i am really sure its not the rear end i had that rebuilt this year and the noise is still there. What would cause this noise ? This has jakes stage 2 rebuild kit with jakes tb and billet shafts. Trans shift fine under normal drive and even 900 plus wot pulls just this noise is bad ... i have thought about selling my set up to go to built 6 sp but need to know whats wrong and fix it
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Old 09-26-2015, 04:30 PM
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try replacing the filter
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Old 09-26-2015, 05:55 PM
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I have one that sounded like a gear drive. Louder than hell.
Ended up being a defective (new) set of pump gears.
New gears problem solved.
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Old 09-26-2015, 06:28 PM
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I looked up pump gear . Looks like i can pull the front cover off the trans and replace it easy? Or should a trans shop do that?. Its loud.. but i dont have any slipping issues
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