If you're having ignition problems with your 5.2L Hemi, you should not be looking for a distributor rotor. The issue lies elsewhere, possibly with:
* Ignition coils: These are more common failure points in modern engines.
* Spark plugs: Worn or fouled plugs can cause misfires.
* Wiring: Damaged or corroded wiring can interrupt the signal.
* Crankshaft Position Sensor (CKP) or Camshaft Position Sensor (CMP): These sensors are crucial for proper ignition timing.
* ECM: Although less common, a faulty ECM can cause ignition issues.
To diagnose ignition problems in a 5.2L Hemi, you'll need a scan tool capable of reading trouble codes (OBD-II scanner) and possibly a multimeter to test components. Attempting to replace a non-existent part will lead to wasted time and effort. It's best to consult a repair manual specific to your vehicle year and take it to a qualified mechanic if you're not comfortable diagnosing electrical problems.