1998 dodge stratus will not shift after engine swop

check the fuse to the trans

I have a 2002 Dodge Ram 1500 pickup so I have had some experiences (mostly bad) with Dodge electronic ignition systems.
I have no specific knowledge about a Sebring or Stratus but as someone who has been working on cars and trucks for the better part of 40 years I'll make a guess that the computer control module in the Sebring is different than the CCM in a Stratus that is a two year newer model. Since you are dealing with engines from 2 different year models there were likely some (maybe minor) changes to the electronic ignition system over the two years. If the wiring harness connectors for the CCM in the Sebring and Stratus are identical I would move the CCM from the Stratus into the Sebring and see if the Stratus engine will then fire. Some questions to consider:
1. Was the Stratus engine running OK before you removed it from the Dodge?
2. Are you sure all electrical connections are correct (and complete) after installing the Dodge engine in the Sebring?

Stuck is 2nd means it's in limp in mode. Get the trouble codes scanned to find out what's going on.

Do the old additive method before you give up....................add one and a half cans of `Sea Foam TRANSMISSION TREATMENT' to it and follow directions. Sometimes that can of stuff is AMAZING! don-ohio

Dodge you cant just replace input and output, youll need to perform a trans relearn and a battery quick disconnect and input the the tire size to the ECM or transmodule, also this might be coinicdent but you idle air control may not be working.

i have a stratus that did th same thang it is the tcm thats the transmission control module see the trans is just trans fluid but when the tcm go out alot of people thanks its the tranmission but its not.

NO / IF THE INPUT OR OUTPUT SPEED SENSORS WERE DEFECTIVE THE TRANSMISSION WOULD NOT SHIFT GEARS .

Have you run a test for trans trouble codes, sounds like a shift solenoid has failed or a defective connection to the trans from the control module.

When was last fluid & filter change?

different car same problem sorry