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ATF fluid change.

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Old 03-03-2019 | 10:05 AM
  #16  
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Originally Posted by Dave51
No, the transmission threads themselves not the plug.

Sorry, no. Someone would have to be an animal to do that. They weren't designed that way.
Old 03-03-2019 | 10:18 AM
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Somehow duplicated the post.

Last edited by Dave51; 03-03-2019 at 10:26 AM.
Old 03-03-2019 | 10:21 AM
  #18  
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Originally Posted by cruiser54
Sorry, no. Someone would have to be an animal to do that. They weren't designed that way.
Perhaps we are talking about 2 different things.

Here are typical stories:

https://www.jeepforum.com/forum/f310...tions-3731337/

https://www.naxja.org/forum/showthread.php?t=1145801

https://www.cherokeeforum.com/f2/transmission-pan-bolts-torque-specs-246978/



Originally Posted by cruiser54
wrist tight....................

Last edited by Dave51; 03-03-2019 at 10:35 AM.
Old 03-03-2019 | 10:32 AM
  #19  
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I'm talking drain plug bolts.

There's always somebody out there that can bend a digging bar in a sand pile.
Old 03-03-2019 | 10:56 AM
  #20  
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Originally Posted by desertfox
Any suggestions on mileage intervals? I thought I read to drive at least 100 miles before repeating the cycle. I’m seeing also some suggestions on a few thousand in between. It’s going to be pretty dirty the first go around. Also, a suggestion on what type (brand) of dex/Merc to use the last time that will end up staying in there for the longer term.
I use an interval half way between severe duty and normal duty which is 15k miles. For the initial changes I shortened that to changing it every oil change until the fluid started looking red on a regular basis again instead of reddish brown. I also have a Trans temp gauge to monitor temps and if I see prolonged temps pushing 240 I'll do an early change as well.
Old 03-03-2019 | 11:00 AM
  #21  
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15K is severe service like taxi, towing, delivery. Normal interval is 30K.

Initially, you could change it every weekend til it's clean.
Old 03-03-2019 | 12:44 PM
  #22  
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Originally Posted by cruiser54
I'm talking drain plug bolts.
There's always somebody out there that can bend a digging bar in a sand pile.
I'm pretty sure he was referring to the pan retaining bolts. Steel bolts into aluminum have a bad tendency to seize. I've had to retap a few after they came out with the threads full of aluminum. I think I know a few of those ham fisted guys that always break things and then blame the quality of the part. I've had to fix some of their handywork myself.
Old 03-03-2019 | 09:06 PM
  #23  
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Hope OP doesn't mind if I tag along here with a related question. I'm on the fence between doing a flush (like this) vs a few drain/fills with some driving in between on my '99 AW4 with 200k. It shifts well warm, but when cold does "jump" slightly into reverse and can be a bit late on the 2nd to 3rd shift. I haven't looked at the fluid yet and the service history is unknown.

Which leads me to my specific concern: What if the fluid in there is actually ATF+4 from a previous change? Say it happens to be. If I drain/fill 3-4 times with Dex/Merc til it stays red and drive something like 30miles in between each time, how much danger is there in driving those ~100miles with what would be an ATF+4 and Dex/Merc mix? Enough of a concern to warrant doing the flush instead?
Old 03-03-2019 | 10:33 PM
  #24  
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Originally Posted by ejot
Hope OP doesn't mind if I tag along here with a related question. I'm on the fence between doing a flush (like this) vs a few drain/fills with some driving in between on my '99 AW4 with 200k. It shifts well warm, but when cold does "jump" slightly into reverse and can be a bit late on the 2nd to 3rd shift. I haven't looked at the fluid yet and the service history is unknown.

Which leads me to my specific concern: What if the fluid in there is actually ATF+4 from a previous change? Say it happens to be. If I drain/fill 3-4 times with Dex/Merc til it stays red and drive something like 30miles in between each time, how much danger is there in driving those ~100miles with what would be an ATF+4 and Dex/Merc mix? Enough of a concern to warrant doing the flush instead?

drain and fill.
Old 03-03-2019 | 11:41 PM
  #25  
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Great, thanks!
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