04 jeep liberty

[Schubie]

I need some ideas on my colleges kids 04 jeep liberty with 88k 4 wheel drive.

The car sporadically acts like it is in a very low gear and will not shift. The car is an automatic but manually needs to have the gear shift pulled to get to 4 wheel drive. There are no codes or warnings. Last time into the shop (2weeks ago) they thought the tranny filter was clogged so we did a power flush, new filter and pan.

It is back in the shop today. Any ideas? Anything to ask or be on the look out for? When I originally took it in I talked to a few shops ans they said with out codes I was in trouble. That diagnostic stuff can be a bugger.

Thanks

Schubie

[overdalimit]

That tranny is electronically controlled. most likely needs to have a solenoid replaced or something like that. My buddy is a tranny guy and says that he is often having tio replace "lazy" solenoids and then "reflash" the control unit.

[Schubie]

Thanks for some insight. Great to know.

[Schubie]

Jeep service just called. They told me they don't know what is wrong. I asked about solenoid and they told me with out a code they were unable to diagnose. I will pick it up soon. Any ideas on a next move?

[overdalimit]

I just talk to my friend who does the tranny work and he suggested the speed sensor...$28 part and can be changed without removing the transmission. said it needs to be acting up for it to show up on a scan tool. said it is pretty common.

[Jeremy airjer W]

Usually they will trigger a code for incorrect gear ratio and the transmission will go into limp more (start and stay in second gear)

[Schubie]

Thanks guys. It is not throwing a code. Frustrating. But will take it back when it does it again.