Changed my tranny fluid! - JeepForum.com
 
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post #1 of 9 Old 10-21-2016, 06:11 PM Thread Starter
Stickers
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2005 TJ Wrangler 
 
Join Date: Jul 2015
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Changed my tranny fluid!

Happy Friday!
I just wanted to share my experience with changing my tranny filter/fluid.

Fortunately my TJs underside is extremely clean and virtually rust free which made dropping the pan so easy. Like most things with my jeep, I tend to get really anxious before doing a project that I haven't done before and afterwards I realize just how easy it was.

At 112k miles I can't say that my 42rle fluids ever been changed. The color was a dark black/brown with only the slightest hint of pink. The magnet probably doubled in size with all the caked on gooey shavings.
Surprisingly I got out approximately 6 quarts just from dropping the pan. Since I only had 7 quarts on hand I decided to just change the fluid I could get from the pan. An hour, hour and a half, later I was done.
One of the easiest projects Iv done and it wasn't all that messy tbh.
That's all! As I learn more and more and complete projects and tinker, I just wanted to share my experience!

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post #2 of 9 Old 10-21-2016, 06:33 PM
2jhanna
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I know the feeling when you accomplish something for the first time.

If the fluid was really that bad, you can do a DIY flush (many threads in TJ tech section to help out) or do a pan service like you just did more frequently, since it only changes part of the fluid.

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post #3 of 9 Old 10-21-2016, 08:33 PM
jay-h
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Chrysler has said don't be concerned about color change... the dye ages but that doesn't mean the fluid is bad.

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post #4 of 9 Old 10-23-2016, 03:37 PM
arbakken
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Quote:
Originally Posted by jay-h View Post
Chrysler has said don't be concerned about color change... the dye ages but that doesn't mean the fluid is bad.
No, but if it's been in there long enough to change (time or mileage) it's time to change. Good job on the DIY!
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post #5 of 9 Old 10-23-2016, 08:02 PM
Chrisnvegas
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From now on, change it twice a year.

Get a Air Power America 5060 Topsider Multi-Purpose Fluid Removing System
https://www.amazon.com/America-5060-...=oil+extractor

Made in the USA, it's powerful enough to suck oil from diffs too.
Slide the tube down the dipstick tube.
Pump it up, release valve and it will suck the trans almost dry in about 1 minute with no further pumping.

Then pour out, measure what you removed and refill.

Next, add an external trans cooler in front of the radiator.
I use the Hayden 679 Rapid Cool.
https://www.amazon.com/Hayden-Automo.../dp/B000C3BBKS

Made in Austrailia, it keeps your trans cool.

Most people don't know, but an automatic kept cool and clean will often outlast the vehicle.
Jeep engines are designed to run hotter than the optimal trans fluid temp of 175 to 180
Every 20 degree drop in fluid temperature will double the life of your transmission.

Ignore what manufacturers say when it comes to trans fluid changes.
They're concerned with the trans making it past the warranty period.
Change it regularly and keep it cool.

I currently have an automatic with 330,000 trouble free miles on it. (not my Jeep, it only has 100,000)
Regular service and a cooler.

You make the choice...

"Auto racing began 5 minutes after the second car was built."
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post #6 of 9 Old 10-26-2016, 04:05 PM
TSEJEEPERS
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I change mine every two years. In my other vehicles.
My Chevy truck, last time I changed it,, I also put a new pan in that has a drain. So it is not as messy. You can also get a DIY drain to put in the pan.
My Jeep gets the fluid changed every year. Manual trans so it is not as messy.
I would agree with Chris on the external cooler.

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list.
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post #7 of 9 Old 10-26-2016, 04:38 PM
Airstreamer67
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I change the fluid every 25-30K or so. A $10 B&M drain plug kit will allow draining the pan just like the engine oil.
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post #8 of 9 Old 10-26-2016, 06:49 PM
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Quote:
Originally Posted by Chrisnvegas View Post
From now on, change it twice a year.

Get a Air Power America 5060 Topsider Multi-Purpose Fluid Removing System
https://www.amazon.com/America-5060-...=oil+extractor
Totally agree... I just used one today for an oil change. It works really well... so much better then crawling under any vehicle!


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post #9 of 9 Old 10-27-2016, 11:15 PM
beepinJ
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Quote:
Originally Posted by grogie View Post
Totally agree... I just used one today for an oil change. It works really well... so much better then crawling under any vehicle!
Sounds a good one, should be a big help especially for old timers.
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