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Old 10-04-2013, 11:25 PM   #1
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Question on trany fluid flash

So after I got this "new" XJ, I picked up the trany dip today, and it looks real dark brown-ish.. I was suggested to flush it down.. As a newbie to Xj, and cars in general, how to flush it. the more detailed the better.. like what kind of fluid I need to buy, what brand is good, and the procedures to do it.. thanks yall. I know I can google it somewhere. But it's different to hear from jeep/ XJ owners how they did it.

somebody told me they'll charge me $100 for this in jiffylube, is that true?

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Old 10-04-2013, 11:35 PM   #2
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A flush requires a machine to get the entire system cleaned. It is not always preferred by most they say it will break some sludge loose and cause more problems.

Jiffy live yes a lot of cash but a real flush. But who is dropping the pan and changing the filter??? If not included find a tranny shop.

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Old 10-05-2013, 06:06 AM   #3
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I'd avoid Jiffy Lube. I would drop the pan and replace the filter, refill and take it for a ride, check for leaks. Then remove the transmission fluid return line from the bottom of the radiator, get the required ATF usually Chrysler ATF+4 and use that. Put the line into a suitable sized container and have someone start the engine. Reconnect the line and refill the transmission. Repeat two to three times. That will exchange the fluid.

I do it another way, which IMO is easier. I do the pan drop as mentioned above. Then I take a Miti Vac fluid extractor and put the hose into the fill tube and a few pumps and out comes about 4 or so qts of ATF. I refill drive for a day, and repeat 2-3 times. My father turned me onto to this method, no fears of breaking a tranny line, and I get nice clean ATF when I'm done. God only knows what kind of ATF Jiffy lube uses and if they even do the job right. There might be other ways, either way I'd do it myself, or have someone drop the pan and change the filter for you, then do the fluid swap yourself. I hope this helps you.
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Old 10-05-2013, 08:32 AM   #4
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^^This if you trust yourself to do the work.^^

Or take it to a good, reputable transmission shop. One thing I don't jack with are transmissions. I don't trust myself and they can be the most (or one of) expensive thing to fix or repair on your car.

I'd skip quick lube type shops whenever possible unless you know the guys doing the work.

Ask me how I know.
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Old 10-05-2013, 12:11 PM   #5
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So you're saying you go through a dozen or more quarts of ATF to change your fluid over a couple day period ?
And what filter do you use ?
And what gasket and RtV ?
Or do you use a lube locker gasket ?
I can't see changing the fluid three times.
And what vac ? Is it just a hand pump fluid exchanger ?
Thanks
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Old 10-05-2013, 02:50 PM   #6
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Jiffy Lube?! Ha! Not a good idea.

Personally, what I would do and what I've done in the past, is to do it the hard way - pan/filter/fluid, run it a week, pan/filter/fluid, run it a week, and then one last time and leave it be. And then, in the future, change it on a more reasonable interval to avoid it getting that filthy to begin with.
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Old 10-05-2013, 02:55 PM   #7
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So what filter do you use ?
And as I asked above of the other dude, you go through a dozen or more quarts of ATF to accomplish this task ?
And what gasket do you use ?
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Old 10-05-2013, 03:08 PM   #8
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The filter and gasket for the pan come in the same box from your local parts store.
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Old 10-05-2013, 03:12 PM   #9
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Yeah, I got that much. I meant what brand do you prefer if any ?
And I can't seem to find Lube Locker anywhere. It was recommended by a few people for a gasket.
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Old 10-05-2013, 06:13 PM   #10
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So what filter do you use ?
And as I asked above of the other dude, you go through a dozen or more quarts of ATF to accomplish this task ?
And what gasket do you use ?
I have no idea on which filter and gaskets, and yes, it does go through a dozen or more quarts of ATF to get the job done. This task sucks and is messy, so I let my friendly Jeep shop do it for me. The owner is a stickler for quality, so I am certain that the gasket/filter are OEM or better, none of that Autozone crap.
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Old 10-06-2013, 10:19 AM   #11
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here's how I did it on my pick-up and what I would do on an XJ.

1- drop pan and drain whatever comes out. clean pan and change filter. the tranny is an expensive piece so I would use factory filter and gasket on this, even if a little more $$. tip on dropping the pan- don't drop the whole thing at once. loosen all the bolts, then drop one corner slowly. this keeps the fluid coming out of a smaller arwa. still messy though. also, when reinstalling pan, snug everything before final tightening, then use a criss- cross pattern as you torque everything back up.

2- replace fluid lost when changing filter.

3- get a clear gallon jug ( like from windshield juice) and mark off quart increments with a sharpie. you can use water to measure out your quart increments on the jug.

4- disconnect pressure side hose from tranny cooler and put in empty jug.

5- have another person start the engine and let it idle while transmission pumps fluid into your marked jug. when you hit 2 qts., have them turn off engine. replace the two quarts with fresh fluid, dump your catch bottle, repeat. 2 qts. at a time. it doesn't take long at idle for the trans to pump 2 qts. less than 15 seconds.

6- when you get fresh fluid coming through into your catch bottle, you're done. reconnect pressure hose, tighten clamp, clean up. Then, RECHECK to make sure all is tight.

my pickup requires $14 /qt fluid, so this job isn't cheap. but it's cheaper than a new tranny and easier than it sounds to do. Two people is key. i did it first time in an hour with my wife starting and stopping the engine. I have helped a few fellow Titan owners and it doesn't take that long.
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Old 10-06-2013, 11:25 AM   #12
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I used a filter from Auto Zone cause I couldn't find a Mopar. It's been Freakin me out ever since. I'm going to drop the pan and replace it with a Wix Filter I just got cause I use their Oil and Air filters and I trust the products they make.
Who thought you could lose sleep over a Filter ! Lol
Gotta be A Jeep thing !
Lots O Good info in this thread.
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Old 10-06-2013, 09:59 PM   #13
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ok, as I read more on the subject online.. it says it might not be a good idea to "flush" it, for high mileage, and fluid which is already brown (burnt).

Mine has 200K on it, what should I do..???
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Old 10-06-2013, 11:23 PM   #14
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Change the fluid and filter. Gasket for the pan comes with filter. Any parts house should have it. Be done with it and keep driving it until it falls out.
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Old 10-07-2013, 09:56 AM   #15
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Quote:
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ok, as I read more on the subject online.. it says it might not be a good idea to "flush" it, for high mileage, and fluid which is already brown (burnt).

Mine has 200K on it, what should I do..???
I wouldn't "flush" it at a shop using a machine. I WOULD make sure to exchange all fluids using the method I described in an earlier post. This gets out as much of the old and burnt fluid as possible. But it doesn't risk some of the issues of having a shop use a flushing machine.
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Old 10-08-2013, 11:56 AM   #16
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Quote:
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here's how I did it on my pick-up and what I would do on an XJ.

1- drop pan and drain whatever comes out. clean pan and change filter. the tranny is an expensive piece so I would use factory filter and gasket on this, even if a little more $$. tip on dropping the pan- don't drop the whole thing at once. loosen all the bolts, then drop one corner slowly. this keeps the fluid coming out of a smaller arwa. still messy though. also, when reinstalling pan, snug everything before final tightening, then use a criss- cross pattern as you torque everything back up.

2- replace fluid lost when changing filter.

3- get a clear gallon jug ( like from windshield juice) and mark off quart increments with a sharpie. you can use water to measure out your quart increments on the jug.

4- disconnect pressure side hose from tranny cooler and put in empty jug.

5- have another person start the engine and let it idle while transmission pumps fluid into your marked jug. when you hit 2 qts., have them turn off engine. replace the two quarts with fresh fluid, dump your catch bottle, repeat. 2 qts. at a time. it doesn't take long at idle for the trans to pump 2 qts. less than 15 seconds.

6- when you get fresh fluid coming through into your catch bottle, you're done. reconnect pressure hose, tighten clamp, clean up. Then, RECHECK to make sure all is tight.

my pickup requires $14 /qt fluid, so this job isn't cheap. but it's cheaper than a new tranny and easier than it sounds to do. Two people is key. i did it first time in an hour with my wife starting and stopping the engine. I have helped a few fellow Titan owners and it doesn't take that long.

That method works very well! If you're afraid to drop a tranny line for what ever reason, a fluid extractor like a Miti Vac works very well. Adee mentioned it.

The problem I find with some shops is they use cheap fluid and then add something to it to hopefully make it something like ATF+4. That's why I stay clear of shops and do the job myself. At the end of the day I know the job was done right when I do it.
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Old 10-10-2013, 01:02 AM   #17
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Got a quote today, $500+ all together...

Fucking kidding me?
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Old 10-10-2013, 01:07 AM   #18
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500$ for what ?
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Old 10-10-2013, 01:20 AM   #19
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500$ for what ?
Drop the pan, change filter, replace rear main seal and front gasket.. The part is about $100, the labor is a bitch..

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