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Grinding Sound

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Old May 25, 2026 | 05:41 PM
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Vets Vet 80's Avatar
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From: So Cal
Default Grinding Sound

2006 c6 LS2 Automatic after motor warmed up to 200 when first drive of day 1st and 2nd gear makes slight grinding noise which goes away in 3rd - 6th gears.
After drive for a little while (10 mins or so) when come to a stop and take off again the grinding noise goes away and it drives perfect.
Had trans fluid changed .Motor oil topped off.
Seems like it takes a little for fluid to get to where it has to go for lubrication.
Any ideas would be appreciated.
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Old Yesterday | 11:30 AM
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Diff fluid ever changed out?
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Old Today | 04:26 AM
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Default Grinding Noise

Yes the differential was drained and refilled. Thank You.
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