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Old 09-15-2013, 01:46 PM   #1
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Auto Trans Questions.

I have an 04 TJ with an Auto Trans.
I haven't had an Auto in quite some time and its my first Jeep.
Should I just drain and replace fluids or Flush the system and refill ?
Also, shout I do the Transfer case at the same time ?

Never replaced a Tranny Filter before either. Is it recommended to do with the fluid change and should I use OE or something else.
Any solid information would be a great help.
I know it's the 42rle and to use ATF+4 in it. Just never done this before.
Thanks in advance.

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Old 09-15-2013, 03:35 PM   #2
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Going to use this, good, Bad ?

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Old 09-15-2013, 03:47 PM   #3
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Castrol or Valvoline ATF+4 is fine for your 42RLE.

Use a Mopar filter. You can do a driveway flush using plastic tubs/buckets.

http://www.wranglerforum.com/f5/tj-a...ush-99115.html
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Old 09-15-2013, 04:05 PM   #4
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It also says to refill through the dipstick tube in the owners manual. How the hell is that possible ? Lol or did I read that wrong ?
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Old 09-15-2013, 04:11 PM   #5
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Yep, refill it via a small funnel placed in the dipstick tube
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Old 09-15-2013, 04:11 PM   #6
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It also says to refill through the dipstick tube in the owners manual. How the hell is that possible ? Lol or did I read that wrong ?
Jerry beat me to it.... or you could use an eye dropper
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Old 09-15-2013, 04:40 PM   #7
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You need a funnel like this. This one is on Amazon but any auto parts store or Wal-Mart sells them. Cheap.

Amazon.com: Hopkins FloTool 05034 Super Funnel: Automotive
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Old 09-15-2013, 04:45 PM   #8
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A cheap .99 cent plastic funnel like is sold in the cooking accessories aisle at the local grocery store is all that is needed. That is all I have ever used, it works just as well as a $5 funnel.

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Old 09-15-2013, 04:50 PM   #9
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Am I the only one that uses an eye dropper to make sure just the right amount goes in the tranny?
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Old 09-15-2013, 05:35 PM   #10
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Ok, one more Q. Where is the filter ? Is it PITA to change the filter and where do I find it.
Feel like an ass for asking but, never done it. Just trying to be self sufficient with the Jeep. Thank you for the help !
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Old 09-15-2013, 05:37 PM   #11
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Sorry, I'm still at work so I haven't had time to check the links you sent.
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Old 09-15-2013, 05:40 PM   #12
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Ok, one more Q. Where is the filter ? Is it PITA to change the filter and where do I find it.
Feel like an ass for asking but, never done it. Just trying to be self sufficient with the Jeep. Thank you for the help !
inside the tranny pan. you have to drop the pan to get to it.
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Old 09-15-2013, 05:42 PM   #13
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The filter is easily changed, you only have to drop the transmission pan to get to it. It is only held in place by three screws, replacing it is a one-banana job.

Just get a good RTV that is compatible with ATF to seal the pan afterward. I place the RTV on both sides of the new gasket. Having one transmission pan gasket leak, I go to great pains to make sure they won't leak again. Or use a rigid pan gasket like is made by Lube Locker & you shouldn't need any RTV at all.

Torque all the bolts to 13 ft-lbs. using a 3/8" torque wrench. Or use a 3/8" ratchet drive & just go around to them all to get them fairly tight while make sure they feel evenly tightened. With a 3/8" drive ratchet wrench, 13 ft-lbs. is probably a bit tighter than you may guess. Don't use a 1/2" drive ratchet wrench, that could strip the bolt holes out too easily.
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Old 09-15-2013, 05:43 PM   #14
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Cool, thanks. So far I've been able to do everything myself and I have learned a ton from you guys ! Really appreciate it !
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Old 09-15-2013, 05:46 PM   #15
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I updated my last post with a little more info on sealing the pan while you were responding.
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Old 09-15-2013, 05:47 PM   #16
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Good to know ! Thanks Jerry and to all.
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Old 09-15-2013, 05:52 PM   #17
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Lubelockers are the ticket especially for the trans pan. My pops Jeep is an auto and we use that on his 42rle. It's reusable too.. Not sure how many times? I think we have reused it once or twice so far. No leaks, no RTV .

And yes be careful tightening them down. The PO overtightened them and the threads came out with the bolt. That was fun.
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Old 09-15-2013, 05:54 PM   #18
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Do you happen to know where I can get my hands on a FSM for an 04 thats in Book form, all I can find is downloads. That always seems a bit Sketchy to me. I'm a book person. Old school I guess.
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Old 09-15-2013, 05:58 PM   #19
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I plan on doing the work tomorrow when I get home. Tranny clunks into gear a lot and seems hard to shift from a stand still.
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Old 09-15-2013, 06:13 PM   #20
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Have you properly checked the ATF level yet? It's not checked like the engine is with the engine off.

When checking an automatic's ATF level, the engine must be running & fully warmed up. Shift through all the gears, then shift into Neutral or Park (for 2003 and newer automatics) & keep the engine running... then check the ATF level & also look at its color & if it smells burnt.

For 2002 and older automatics, everything said above still applies but the transmission must be in Neutral, not Park when checking the ATF level.
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Old 09-15-2013, 06:41 PM   #21
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I have checked it in that manner and it didn't smell weird but it was a bit low last week. That's why I wanted to just flush or change it.
Just got paid so had a little cash to pick up the fluids and have to get a filter tomorrow.
My hope is it will take care of the clunking and supply me with yet a bit more knowledge and skill to keep her going.
I don't have any service records from the PO so I've been trying to get to all the maintenance and acquire the tools I don't have as I have the means to do so.
My daily commute is 8 miles and I have kept Wheeling to a bare minimum until I get her sorted out.
Not doing any Mods until I am mechanically sound. That's my main focus.
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Old 10-03-2013, 09:11 PM   #22
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Does it matter what brand Tranny Filter you use ? I used one from Auto zone and can someone tell me where to get Lubelocker. Couldn't find a lube locker gasket anywhere.
Thanks !

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