If your Sebring's idle is too high or too low, the problem isn't solved by adjusting a setting. Instead, you need to diagnose and fix the underlying cause. Here are some possibilities:
* Dirty or Faulty Throttle Body: A dirty throttle body can cause erratic idle. Cleaning it is often a simple fix. A faulty throttle body might need replacement.
* Vacuum Leaks: Leaks in the vacuum system can disrupt the idle. These can be hard to find and require careful inspection of all vacuum hoses and connections.
* Faulty IAC (Idle Air Control) Valve: This valve regulates air flow at idle. A malfunctioning IAC valve is a common cause of idle problems.
* Mass Airflow Sensor (MAF) Issues: A dirty or faulty MAF sensor provides inaccurate air flow readings to the ECM, affecting the idle.
* Faulty PCM (Powertrain Control Module): In rare cases, the ECM itself might be faulty, though this is less common.
* Other Sensor Problems: Various sensors (like the coolant temperature sensor) can impact the ECM's idle control calculations.
What to do:
1. Check the engine for any obvious problems: Look for loose hoses, broken parts, or anything unusual.
2. Have the car scanned for diagnostic trouble codes (DTCs): An OBD-II scanner (available at most auto parts stores) can read codes stored by the ECM. These codes will point towards the source of the problem.
3. Consult a repair manual specific to your 2004 Chrysler Sebring: This will provide detailed information on diagnosing and repairing idle problems.
4. Take it to a qualified mechanic: If you're not comfortable diagnosing and repairing the problem yourself, take it to a mechanic. They have the tools and expertise to accurately diagnose and fix the issue.
Simply put, there's no "idle setting" to adjust. Focus on diagnosing the reason for the incorrect idle speed instead.