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How To CYCLE TRANSMISSION FLUID In Your 02-07 Jeep Liberty 3.7L

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Published on Mar 28, 2009

http://www.youtube.com/user/satchelmc... - If this vid was helpful or you liked it, please post it in jeep or car forums.
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This video shows how to always have fresh fluid going through your transmission instead of adding just 5 quarts or so at each 30K mile filter change. Our Liberty (02-07) transmissions hold a total of 14 quarts(45RFE) or 12 quarts(42RLE) quarts of fluid. It cant be good IMO to let most of the fluid stay in the transmission on the 30K mile schedule. If 5 quarts come out at each filter change, that would mean it would take 90K miles of use (3 filter changes) before the 14 quart capacity was reached, and even then most of the fluid added from the beginning would now be old as well.


The following 2 schedules will vary with how often you change your oil. You dont however, have to do this during oil changes. I just prefer to do so as it only takes a few extra minutes and helps maintain an even schedule.

5000 Mile Schedule.- Use MOPAR ATF+4 Synthetic or equivalent

At each 5K mile reading on the odometer, change your oil and filter as usual. Then pull out 2 quarts of transmission fluid as described in the video and then replace with 2 new quarts. Job is done until the next oil change.

This ensures that at least 10 fresh quarts will be cycled through your transmission before the scheduled 30K mile filter change. When the odometer hits 30K, do your oil/ filter change as usual. Then take off your transmission pan, change your transmission filters and replace pan and gasket/sealant. Dropping the pan will release 4 - 5 quarts of fluid which you will replace until the dip stick says its enough.
Then repeat entire process. until 60K, 90K, 120K miles and so forth.


3000 Mile Schedule - Use MOPAR ATF+4 Synthetic or equivalent

For those of you who change your oil every 3K miles, this follows the same example as above except you would do this at your 3K mile oil change. The only thing I would say different is that you can get away with only pulling out 1 quart at each change instead of 2 quarts. This is because, in this schedule, there will be 9 oil changes up until the 30K mile period so 9 x 1 =9 fresh quarts over that period, and then on the exact 30K mile change, you will have to drop the pan anyway to change your transmission filters and this will be where the last 4 - 5 quarts are exchanged.


Even at that, these schedules are just easy to follow suggestions. You can do this every week if you want, as long as you maintain proper fluid levels, but that would be expensive and pointless.

This can also work with most any transmission if you feel the need to do so. I just dont like the idea of all of that old, worn out fluid staying in the system for as long as it does.

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