Hello to all,

I would like to submit a question that does not give me sleep:

After about 30 000 km from the day I bought my XJ, I think it's time to change oil and filter transmission 4-speed Aisin AW-4 automatic.
After reading forum and post about it and I do not know if make it or not. :-(
They say that after many miles do not open the oil box (pandora box :-|) as the' new oil could damage the mechanism. And many have had the experience of slipping .... bohhh

I do not know what to do in reality. Ever since I bought it I feel that after 19k mi has lost a bit of power, I'll explain: when I give gas, before it was a lion, not anymore. We say that is a little more heavy...! Perhaps it is due to the trasmission ... also there is a little bit of delay before changing gear, I think . I found an oil that is recommended for transmissions after 75k mi of Valvoline MaxLife ... ® DEX / MERC ATF recommended for Dexron I-II-III and VI.

someone has already had experiences in this regard?
recommended to remove all the oil or change only 3-4 quarts (3.6L)!

Ah specific that all checks have been made from time to time, at least for my 30 000 km. First I do not know ....

filters, oil, etc.

IDEAS?

 

Is the trans oil still red?? If so change it youll be fine but if its discolored an looks dirty dont touch it means your fluid is full of clutch material an an indeed if you change the fluid ull start slipping most last a month.. but u can always drian the fluid jn to a clean container change the filter an poor that fluid back in no problem

 

Have you ever adjusted the detent cable ?

 

Thank you Sneaky!
I will check it out. I am very young to this arguments....

 

Don't know what is that...:-( I am Italian and I don't understand most of the mechanical vocabulary and even in Italian I'm not very PRO. I just love this car and from now trying to get as more info I can.

anyway why are u asking that?

thanks!


Mat

 

It affects the gear shifting timing how fast it upshifts and how easy it down shifts thus affecting the fell of the lion ...

 

I actually never touch it. but probably my mechanics knows...I ll ask.

Do you think is that?!

thanks!

 

It can affect the acceleration fell . Do you have a transmission switch on dash that says power/comfort by you right knee on dash board ?

 

Would look like this ....

 

My Uncle owed my jeep before I did and never changed the trans fluid, I work at a Chrysler dealership and had them change it all every last drop of the trans fluid it was black I was pod about it but anyway they changed the filter too and so far so good no problems or anything in fact the power increased greatly from what I can tell.

 

You got lucky ...

 

yes I got it.
but actually the fell happens always when is off. On... never tried.
For example In sloped terrain I really feel that is kind of tired

 

Hey Freegdr!
I just figured out where this cable was and now I remember that my mechanic fixed it with a plastic thing, cause the end of the cable (plastic cap ?) was broken and I couldn't use the control anymore cause the cable was of course unlinked...
Any wau since that day when I was use the cruise control wasn t so precise of course anymore. But I still dont get whats the connection with the fell of power...

thanks

 

this switch should always be in power position the cable under the hood regulates shifft pressure if a tranny shifts to fast it will fell slugish and will not down shift properly to accelerate faster . you will fell like you towing a trailer around behind you every where .

 

I change my AW-4's fluid every year. The pan holds about 2 quarts. Changing out 2 quarts each year keeps it fresh. At 152,000 miles, it still runs and shifts like new. Rumors about "never changing the transmission fluid" should be ignored.

Valvoline Dex/Merc ATF will work fine. If you can find it, Mobil One Synthetic ATF is the best fluid you can get, and the only fluid I use.

Best of luck, and have fun with your Jeep!