1. Battery and Electrical System:
* Dead Battery: This is the most common cause. Check the battery terminals for corrosion (clean them if necessary) and have the battery tested at an auto parts store. A weak or dead battery won't crank the engine.
* Loose Battery Cables: Ensure the positive (+) and negative (-) battery cables are securely connected to both the battery and the car's terminals. Loose connections can prevent sufficient current flow.
* Alternator: A faulty alternator won't recharge the battery, leading to a dead battery even after a jump start. Have the alternator tested.
* Starter Motor: The starter motor is responsible for cranking the engine. A faulty starter can click, whine, or not engage at all. This often requires replacement.
* Fuses and Relays: A blown fuse or a faulty relay related to the starting system can prevent the starter from receiving power. Check the fuse box under the hood and inside the car (if applicable) for blown fuses.
* Wiring Issues: Damaged or corroded wiring in the starting circuit can interrupt the electrical flow. This is harder to diagnose and often requires professional help.
* Security System: If your Charger has a factory or aftermarket alarm or immobilizer system, a malfunctioning system might prevent the car from starting. Check your key fob battery and try the spare key.
2. Engine Problems:
* Fuel System: No fuel or a problem with the fuel pump, fuel filter, or fuel injectors can prevent the engine from starting. Check the fuel gauge.
* Ignition System: Issues with the ignition coil, spark plugs, or distributor (if applicable) can prevent the engine from igniting the fuel-air mixture.
* Crankshaft Position Sensor (CKP Sensor): This sensor tells the computer the position of the crankshaft. A faulty sensor will prevent the engine from starting.
* Camshaft Position Sensor (CMP Sensor): Similar to the CKP sensor, but for the camshaft.
* Low Oil Pressure: Some cars have a safety feature that prevents starting if the oil pressure is too low.
3. Other Possibilities:
* Neutral Safety Switch: This switch prevents the car from starting unless it's in Park (automatic) or Neutral (manual). Make sure the shifter is in the correct position.
* Immobilizer System: As mentioned above, a problem with the key or the immobilizer system can prevent the car from starting.
Troubleshooting Steps:
1. Check the obvious: Battery, cables, fuel level, and shifter position.
2. Listen carefully: Does the starter crank (make a whirring sound)? If not, it points to the battery, starter, or related electrical components. If it cranks but doesn't start, it suggests an engine problem.
3. Jump start: Try jump-starting the car. If it starts, the battery is likely the culprit. If it still doesn't start, the problem lies elsewhere.
4. Check the fuse box: Look for any blown fuses.
5. Professional help: If you can't identify the problem, take your Charger to a qualified mechanic. They have the tools and expertise to diagnose and repair the issue effectively.
Providing more details about what's happening (e.g., clicking sounds, no sound at all, lights dimming, etc.) will help narrow down the possibilities.