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Old 10-30-2010, 08:47 PM   #1
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tranny pan

I hit 30,000 miles the other day and i am going to change plugs and all my fluids: PS, brake, coolant, diff, and tranny. My question is i want to flush the tranny but i also want to change filter and not stir up any thing resting in the pan. I am thinking about getting an aluminum deep pan with a plug, installing the pan and new filter and filling it back up running a while drain fill drain fill until the fluid looks new then wait 30,000 more and do it again. Anything wrong with this and does any body do it all ready.

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Old 10-31-2010, 07:03 PM   #2
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According to things I've read on this forum you won't get out all the trans fluid because some (about 1/3 IIRC) is still in the torque converter. The only way to remove it all is by power flushing. You may want to check other threads.

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Old 10-31-2010, 08:48 PM   #3
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You cant change all your power steering fluid so you suck it out of the reservoir refill, then run the power steering( the new and the old mix) suck it out, fill it, run it, suck it, fill it, run it untile it looks new. that is similar to what i want to do to my tranny. has any body done this or something like it.
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Old 10-31-2010, 08:55 PM   #4
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at 30k you should change all the fluid and filters in the 42RLE. use only Mopar filters and Mopar certified ATF+4. anything else and the tranny will not be happy.
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Old 10-31-2010, 09:17 PM   #5
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I have changed tranny fluid in cars 10 or 15 times. I know how it is NORMALLY done. I know how shops flush the tranny. labor for the flush is $120 plus tranny fluid plus environmental cost and it is extra to have them drop the pan and change filter before the flush. I also like to have the pan removed so i can wipe the sediment out and change the filter so the sediment doesn't get mixed back into the tranny.. I want the benefit of a flush without paying for it. I was wandering if any body flushes their tranny in a shade tree mechanic kind of way like what i mentioned earlier or unhooking lines, or something i have not even thought of. thanks for any help.
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Old 10-31-2010, 10:15 PM   #6
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Drop the pan and change the filter as normal. Refill with fresh ATF to the proper level. Remove ATF return line from the radiator and replace with clear or other type of hose. Have this hose empty into a milk jug or other clear container. Have a helper start Jeep and put tranny into drive while holding brake. The hose will empty into clear container. When 2-3 quarts have been pumped out, shut the Jeep off. Refill tranny to proper level and repeat until the fluid flowing into the container is new. This is the only "home mechanic" way to truly empty the TC.
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Old 10-31-2010, 10:28 PM   #7
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sweet man, do you do this yourself or just giving advise
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Old 10-31-2010, 10:34 PM   #8
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I have done it on my '98. I think I used a case (10-12 quarts) of tranny fluid. On mine with the 32rh the line I used was the passenger side of the radiator. Not sure on yours though.
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Old 11-01-2010, 06:21 PM   #9
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fire239: I trust you meant "trans" not "TC" (Transfer case). Don't want to confuse the OP.
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Old 11-01-2010, 07:58 PM   #10
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I think he meant torque converter by TC. Do they unhook that return line on the tranny when they power flush it at the shops? Does the pump inside the tranny, pump fluid through the torque converter or does the torque converter fill by way of gravity? Lastly is their any concerns about putting a deeper pan on the tranny (42rle)? I think it will run cooler with the deeper pan if i am not mistaken.
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Old 11-01-2010, 08:42 PM   #11
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Quote:
Originally Posted by 03 RUBI View Post
fire239: I trust you meant "trans" not "TC" (Transfer case). Don't want to confuse the OP.
Yep, torque converter..........

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