Junior Member
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Join Date: Feb 2009
Location: Hattiesburg, MS
Age: 55
Posts: 5
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Junior Member
Join Date: Feb 2009
Location: Hattiesburg, MS
Age: 55
Posts: 5
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Well, after reading this thread, I decided to take the plunge and do a full fluid exchange on my 2007 Limited 4WD, and it went a lot easier than I expected.
I disconnected the lower trans cooler hose, attached a 3/8” clear tube, ran that to a graduated catch bottle with clear markings, then ran a 1/2” clear hose to the fill port on the side of the transmission, with a funnel attached, hanging from the hood latch.
I pumped out two quarts and it was black as night, and added two quarts of Valvoline MaxLife synthetic fluid, then repeated the process until I had cycled 16 quarts through the transmission.
I had planned to stop at 12 quarts and fill the remainder, but it wasn’t quite clear red yet, so I ran four more quarts through, two at a time, until I got clear red fluid coming out, making sure not to over fill.
She drives like a new truck now, and the shudder between 40-50 MPH is gone.
I changed the oil, filter and air filter while I was at it, and now she’s rocking fresh Mobil 1 synthetic 5W30.
All in all, it was a very productive day, and I’m glad to have that black, nasty fluid out of my transmission!
Thanks to all for the very useful input and guidance about this process!
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