Jeep/transmission techs - trans starting to slip?

[torredcuda]

A co-worker has an `03 Liberty,3.7 and recently the trans is starting to slip a bit.I drove it and it is fine when you take off slow but try and punch it and is slips/shudders a bit.Also if you don`t come to a complete stop it takes a second to go into gear.Any chance it doesn`t need a coplete rebiuld?I had it scanned and no codes but it said it`s running hot and fluid smells a touch burnt.Is there any other diagnosis the dealer or trans shop can do before going for a rebiuld?

[4 speed fish]

Get the fluid changed first,then go from there.

[MEK-Dangerfield]

Funky smelling fluid isn't a good sign.  Trust me.   

[torredcuda]

She said the fluid was changed last year by a shop and I`m wondering if they used the correct type?I`ll probably change the fluid and filter to see if it helps but ya Mike-burnt fluid is never good!

[tactransman]

You need to check the CVI (clutch volume index) readings with a scan tool. That will tell what the condition of the clutch packs is.

[torredcuda]

A local mechanic put his Snap On scanner on it and came up with no codes.Will the Snap On one work or should I have dealer or trans shop do it?

[tactransman]

Yes,the Snap On scanner will work. You need to find out not just codes,but CVI numbers.

What is the mileage?

What does the pan look like?

42RLE


45RFE

[Bullitt-]

I've had similar experiences with several Chrysler products that turned out to be the wrong fluid although burnt smell was not part of the symptoms... Two times adding a friction modifier solved the problem, on the other the fluid was changed to Mopar Spec fluid. 

[torredcuda]

Checked the pan and it`s the 42RLE.

[tactransman]

Have them get CVI numbers and post them.