Volume 1 Issue 4 - Duramax Issues and Answers

I have a 2002 Duramax 6.6 turbo 2500HD and pull a fifth wheel (about 8500 pounds). I have been told there is a second filter inside the pan of the transmission that should be changed. Does the back pressure method of changing the transmission fluid do an effective job of cleaning this filter, if it has one? I have also been told that it is not a good idea to change the transmission fluid very often. Is this true? My transmission temperature reading gets above the 200ºF mark almost every trip during the summer months. Is this to be expected?

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