Weird shifting issues - Jeep Cherokee Forum

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Weird shifting issues

Old 02-13-2019, 05:00 PM
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Join Date: Feb 2019
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Model: Cherokee (XJ)
Default Weird shifting issues

Hey guys, Iíll try and give as much details as I can. 2004 Columbia. 4.0 42re trans. I got a little muddy water in the trans the other week. Iím a shop foreman for a trucking company, so I drove it straight to my shop and drained it all out. Had no problems at this point. All of our equipment is for heavy duty trucks so I couldnít flush it all the way. So I filled and drained until it looked normal and changed the filter. Ran fine for a couple days and now itís acting up.
When acelerating from a stop. It will not shift out of first until I hit 4200-5000 rpms. When it does shift itís smooth. When itís in the next gear (it feels like 3rd) I have no kickdown. You floor it and it just gradually goes. Downshifting is smooth. Here is what I have checked/done.
-dropped pan for a 4th time, no chunks of clutch packs or metal
-used professional code reader, 0 codes active or inactive on anything
-checked all fuses and relays, replaced the all for the hell of it
-shifting into neutral then back to drive doesnít seem to help
-checked the kickdown cable or I think itís called the throttle position cable
-visually inspected wires and such to the trans.
-trans cooler is not hooked up

Itís not overheating
Using 1st or 2nd gear doesnít help.

Im kind of lost where to look next, it feels like itís maybe a issue with the tcm putting it into limp mode or something. It doesnít feel mechanical.
Wjtrev is offline  
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