transmission service - JeepForum.com

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post #1 of 17 Old 09-23-2013, 02:24 PM Thread Starter
whorunit1475
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transmission service

Well the long list of preventative maintence begins as I just hit 100 k on my 2002 i6...

I just replaced the crank sensor and fan relay now my transmission is going to get attention. My question is do I flush the transmission or just a fluid and filter change? Also what service will the transfer case require? 2002 i6 4x4

-tim

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post #2 of 17 Old 09-23-2013, 02:27 PM
wsar10
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No flush, just filter, gasket and fluid. I always buy my fluid (by the gallon) at the dealer, its by far the cheapest way to get ATF+4.

TC just gets new fluid

No need to wait for 100k for this service.
Trans should be done every 50-60K
TC 30-40K
along with allot of other stuff.

QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.


-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift
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post #3 of 17 Old 09-24-2013, 05:25 AM
dlundblad
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Quote:
Originally Posted by wsar10
No flush, just filter, gasket and fluid. I always buy my fluid (by the gallon) at the dealer, its by far the cheapest way to get ATF+4. TC just gets new fluid No need to wait for 100k for this service. Trans should be done every 50-60K TC 30-40K along with allot of other stuff.
How much does the dealer charge per gallon?

03 WJ Laredo 4.Sl0w
16" JK alloy take-offs
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post #4 of 17 Old 09-24-2013, 08:25 AM
wsar10
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Quote:
Originally Posted by dlundblad View Post
How much does the dealer charge per gallon?
I forget, and prices change.
Call and ask for service dept., than ask if you can bring gallon jugs and buy fluid.
It's been 50k mi since I have done mine and at that time it was something like $3 less a qt when having the dealership fill gallon jugs. I used windshield washer fluid bottles that I rinsed out with distilled water and left dry in the sun.

QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.


-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift
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post #5 of 17 Old 09-24-2013, 08:33 AM
wsar10
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I just called the local stealership, to buy a gallon (with your container) is $19.40 a gal. which is $4.85 per qt...........

compared to $7-11 per qt at parts store.

QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.


-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift
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post #6 of 17 Old 09-24-2013, 10:21 AM
Ravie
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I wonder who their bulk dealer is? At Honda we had Mobil 1.

1999 WJ - Over 10k on the 4.0 rebuild. FB/BDS 2" lift (2.5") w/Bilstein 5125's. General Class Ham...KC0LUA
Burlbook48 sez "Nothing moves a project along faster than cubic dollars." Certified Thread Killer.
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post #7 of 17 Old 09-24-2013, 10:30 AM
wsar10
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I asked, and he did not know........
Most guys just think "fluid id fluid"

Last time I got it there I looked at the barrel and it was Kendall and I was able to find a data sheet on line. They get it from the lowest bidder.......

QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.


-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift
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post #8 of 17 Old 09-24-2013, 11:01 AM
Valor
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I would never get a transmission flush, especially on a transmission that is known to act funny when you don't use Mopar fluid.

If you're doing the fluids, I would also change the fluid in the TC and the diffs.
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post #9 of 17 Old 09-24-2013, 12:21 PM
Ravie
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Quote:
Originally Posted by Valor View Post
I would never get a transmission flush, especially on a transmission that is known to act funny when you don't use Mopar fluid.
I have never heard anyone say that before today, and not had any problems in my own, either. Sounds like a one-off anecdote to me.

1999 WJ - Over 10k on the 4.0 rebuild. FB/BDS 2" lift (2.5") w/Bilstein 5125's. General Class Ham...KC0LUA
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post #10 of 17 Old 09-24-2013, 01:26 PM
wsar10
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Quote:
Originally Posted by Ravie View Post
I have never heard anyone say that before today, and not had any problems in my own, either. Sounds like a one-off anecdote to me.
I think by "MOPAR" fluid he simply means ATF+4.

Or if you are referring to the flush, It's pretty common for a total flush to cause issues (or expose them) with higher mileage transmissions.

QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.


-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift
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post #11 of 17 Old 09-24-2013, 02:15 PM
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Quote:
Originally Posted by whorunit1475 View Post
Well the long list of preventative maintence begins as I just hit 100 k on my 2002 i6...

I just replaced the crank sensor and fan relay now my transmission is going to get attention. My question is do I flush the transmission or just a fluid and filter change? Also what service will the transfer case require? 2002 i6 4x4

-tim
Just because i don't think it's been mentioned , if you have quadra-tracII - NV247 transfer case , you should use mopar NV245 fluid and not ATF+4 .

5 and counting :05 WK 5.7 HEMI
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94 ZJ Ltd 5.2 ,00 WJ 4.0
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post #12 of 17 Old 09-24-2013, 02:20 PM
KayCeeJeep
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Cheapest ATF+4 I know of is SuperTech, just over 4 bucks a quart works great. A flush done properly is no problem but most here are afraid of them because flushes are not created equal and how do you know what you're getting?
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post #13 of 17 Old 09-24-2013, 03:57 PM
dlundblad
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Quote:
Originally Posted by wsar10 View Post
I forget, and prices change.
Call and ask for service dept., than ask if you can bring gallon jugs and buy fluid.
It's been 50k mi since I have done mine and at that time it was something like $3 less a qt when having the dealership fill gallon jugs. I used windshield washer fluid bottles that I rinsed out with distilled water and left dry in the sun.
Ill give the local dealer a try tomorrow. Thanks.

03 WJ Laredo 4.Sl0w
16" JK alloy take-offs
2" BB, Goodyear AT's
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post #14 of 17 Old 09-24-2013, 04:02 PM
dlundblad
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If you perform the drain yourself you may want to consider adding a drain plug to the tranny pan as well. You should still fully remove the pan and replace the filter. The plug just allows for a cleaner draining process.

03 WJ Laredo 4.Sl0w
16" JK alloy take-offs
2" BB, Goodyear AT's
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post #15 of 17 Old 09-24-2013, 06:00 PM
Valor
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Quote:
Originally Posted by wsar10 View Post
I think by "MOPAR" fluid he simply means ATF+4.
Pretty much this. Despite there being many brands of ATF+4, I find it best (if you have the funds) just to go with Mopar ATF+4. I've heard of problems being caused by using other fluid, but I'm not 100% sure if that's actually true.

I'm sure many people have had good experience with using fluid that wasn't Mopar. I know Honda ATFs will fail if you don't use the Honda ATF-DW1. Better safe than sorry.

Quote:
Originally Posted by wsar10 View Post
Or if you are referring to the flush, It's pretty common for a total flush to cause issues (or expose them) with higher mileage transmissions.
Yup, I agree 110%.
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