Trans flush
Its getting close to the time for me to change the transmission fluid. Im going to put synthetic in. I was just wondering if you guys change the filter when you flushed the fluid? I have a 05 auto with 62500 on the clock if that makes a difference.
flushing is super easy. You unscrew the return line off the radiator or the trans. housing. Have someone hold the end into a bucket and start the truck and let it idle until the fluid starts sputtering. That empties your pan. Now drop your empty pan and change your filters. Button back up..Pour 6 or 7 qts of fluid in the trans. to fill the pan back up and start the truck until the fluid going into the bucket sputters again. Fill 6 or 7 qts again and repeat once more or until the fluid going into the bucket is clean. Takes about 17/18qts total. Your drawing the new fluid in and it's pushing the old fluid out. There is some minor mixing going on, but if you add 6 or 7qts each time and not 2 or 3, you'll get far less old fluid/new fluid mix
Last edited by dirtydog; Jun 25, 2010 at 08:21 PM.
+1 on what dirtydog said. you can get the filters at napa. they will most likely tell you there is only one, but make sure you get both the sump (flat filter) and the spin on (cooler return filter)
also, ATF+4 is already fully synthetic. just make sure you get that, and not something else. personally, i use valvolene. i used to have royal purple in it, but now i feel it costs way too much to not have any real benefit over any other ATF+4
also, ATF+4 is already fully synthetic. just make sure you get that, and not something else. personally, i use valvolene. i used to have royal purple in it, but now i feel it costs way too much to not have any real benefit over any other ATF+4
two filters=trans filter and cooler return filter, you have to ask for both or they will try to tell you there is only one listed. About $12-$15 each at most chain auto part stores. Need 5 -6 quarts of ATF +4 if you just drain the fluid in the pan
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good point dirty! the 4wd sump filter has a longer neck on it to accommodate the deeper pan on the 4wds.
flushing is super easy. You unscrew the return line off the radiator or the trans. housing. Have someone hold the end into a bucket and start the truck and let it idle until the fluid starts sputtering. That empties your pan. Now drop your empty pan and change your filters. Button back up..Pour 6 or 7 qts of fluid in the trans. to fill the pan back up and start the truck until the fluid going into the bucket sputters again. Fill 6 or 7 qts again and repeat once more or until the fluid going into the bucket is clean. Takes about 17/18qts total. Your drawing the new fluid in and it's pushing the old fluid out. There is some minor mixing going on, but if you add 6 or 7qts each time and not 2 or 3, you'll get far less old fluid/new fluid mix



