Truck Forums - transmission fluid capacity

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Cubsfan13

Jul 13, 2008 07:50 PM

transmission fluid capacity

I have a 2003 Sierra with a 5.3l engine; I accidently drained the transmission fluid trying to change my oil. Does anyone know the transmission pan capacity?

rxsteven

Jul 13, 2008 08:43 PM

RE: transmission fluid capacity

Thats funny I did that to my sisters car once. Its 5 quarts use DEXRON III. If you have the 4L80E you need 7.7 quarts. Thats what the book says anway. Id start at 4 quarts and then add a 1/4 quart at a time.

Cubsfan13

Jul 13, 2008 08:55 PM

RE: transmission fluid capacity

Thanks, I appreciate the help!!

rxsteven

Jul 13, 2008 10:31 PM

RE: transmission fluid capacity

No prob. You should post on the Silverado forum thats were most of us go.

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