tranny drain and fill question...

[Sal-XK]

I bet their trans "flush" is really just a fluid transfer like I described with the buckets.... except its a machine that does the pumping instead of the trans. No big deal with that.

I think Chrysler recommends staying away from flushes the push a cleaning solution through....

ya that's what I get its just a fluid exchanged no cleaners just catching the old and replacing with new. The one down side is the filters don't get changed but I keep it on schedule so the fluid should be clean and there shouldn't be anything in there anyway to clog the filters at least I hope not LOL

[paroxysym]

The reason i drain and fill every 15k is it was a recommendation from the guy that does most of the work on my jeep-'his been a jeep tech for years now. He said if I wanted my tranny to last, drain and fill every 15k. His wife drives a WK with 150k on it and he does the same and no problems there. He's been dealing with my jeeps for years now and I trust him. I'm coming up on 90k so I'll be doing both filters and a drain a flush.

[Matt]

That one will work.
I use the Mityvac MV7201 since I can reverse flow. Comes in handy for filling tcase, diffs etc.

[T1RKaZz]

I wanna do this but I got the v6 with the sealed Mercedes tranny any tips

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[07JeepXK]

Yea take it to the dealer. Lol

[Matt]

I wanna do this but I got the v6 with the sealed Mercedes tranny any tips

You can use a fluid evacuator to suck the fluid out through the dipstick tube and then refill with the same amount you pulled out.

[cabledog25]

yeah ive wondered about that too

[Matt]

There is a dipstick you can buy. Then what you'd want to do is check the fluid level when the vehicle is cold and score the dipstick for your "cold" mark, and then check again when its hot and score the dipstick for your "hot" mark. Then you can drop the pan, change filters, etc and use that dipstick to get your fluid level back to where it was without having to hook up a scanner to read trans temp.

[Matt]

Here are some dipstick options for the NAG1:

If you have a scanner that can read trans temp, this works well but is $60
Special tool 9336

If you can't read trans temp, go with the cheaper option jeep p/n 53013592AC ($12 from wholesale mopar).

Either way you can mark the cold/hot fill levels like I previously mentioned. If you use the 9336 tool then all you have to do is get the fill height to correlate with the trans temp (assuming you have a scanner than can read trans temp). Or if you use the cheaper Jeep dipstick, this chart can be used to correlate fluid level to temp.

[mrnavy2]

You can use a fluid evacuator to suck the fluid out through the dipstick tube and then refill with the same amount you pulled out.

Matt, how much does a fluid extractor cost? If I used one does the fluid have to be cold when extracting?