The tie rod end and the connector piece it screws into is ceased. What kind of a tool do I need to hold this threaded so can unscrew This Chrysler sebring 2002 2.4 liter?

You'll need a tie rod end separator (also called a tie rod puller or separating tool). This is a specialized tool designed to grip the tie rod end without damaging it while providing enough leverage to break the seized connection. Trying to use pliers or adjustable wrenches will likely just damage the connector or the tie rod end.

There are different types of tie rod end separators, some are more universal than others. A good auto parts store should be able to help you find the right one for your 2002 Chrysler Sebring's specific tie rod end design. Bring a picture of your tie rod end if you're unsure, to make sure you get the right tool.

Important Safety Note: Before attempting this repair, disconnect the battery's negative terminal. This will prevent accidental short circuits and airbag deployment. Also, be aware that the suspension will be somewhat loose once the tie rod is disconnected, so support the vehicle properly to prevent it from shifting or falling. This is a job best done with the wheel off the ground, ideally on jack stands. If you're not comfortable performing this kind of repair, it's best to take your vehicle to a qualified mechanic.