Trans Fluid Flush

[Atrus]

Being that my past Chrysler experience was with the AWESOME (sarcasm) A604, I am a little leery of transmissions.

I need to have the trans flushed in my KJ. In past vehicles, I've tried to do a "flush" myself (broke and in college at the time). I'd drop the pan and change the filter. I'd then overfill the trans a bit with fresh fluid, and pull the return line from the cooler at the transmission. I'd have my lovely assistant fire up the car, run it quickly through each gear, and shut it down. My ASSumption was that I got most of the old fluid out.

What do we need to do for the KJ? I don't know if I trust the oil-change places as I've heard that sometimes they don't really use the correct fluid Mopar requires. Is this a dealer only deal? Think my ghetto method would work well enough?

 

[RageOfFury]

There is a how-to on this subject. Check it out

http://www.jeepkj.com/forum/showthread.php?t=38851

 

[JeepJeepster]

Just change the fluid ever 30k and dont worry with it. If you want you can get a pump that will allow you to suck oil out of the dip stick if you dont want to drop the pan. Personally I plan on sucking it out every 15k and dropping the pan every 30k.

 

[tjkj2002]

I don't know about the 42RLE but when you just drop the pan on a 45RFE you may loose a max of about 5-6qts(even if you let it sit overnight) and the 45RFE holds a total of 14qts of ATF+4.That leaves 8-9qts of bad/old fluid still in the trans,just a few fun facts.