* Crankshaft Position Sensor (CKP): This sensor tells the computer the position of the crankshaft, crucial for ignition timing. A faulty CKP sensor will prevent the engine from running consistently or at all. This is a very common cause of this type of problem.
* Cam Position Sensor (CMP): Similar to the CKP sensor, but for the camshaft. A faulty CMP sensor can cause the same symptoms.
* Fuel Pump Relay: Even though you have gas, a faulty relay might prevent power from reaching the fuel pump, leading to fuel starvation.
* Fuel Pump itself: The fuel pump might be failing, unable to provide sufficient pressure.
* Mass Airflow Sensor (MAF): A dirty or faulty MAF sensor provides inaccurate air readings to the computer, leading to improper fuel mixture and engine stalling.
* Throttle Position Sensor (TPS): A malfunctioning TPS won't give the computer accurate information about the throttle position, affecting the fuel delivery.
* Battery/Alternator: While less likely given that it starts, a weak battery or failing alternator could still cause the engine to cut off if it can't maintain sufficient power. Check the battery voltage.
* Computer/PCM (Powertrain Control Module): In rare cases, a faulty PCM can cause erratic engine behavior, including stalling.
Troubleshooting Steps:
1. Check the obvious: Make absolutely sure the gas tank isn't completely empty (sometimes the gauge is faulty).
2. Check the battery voltage: A weak battery might show normal voltage initially, but drop under load.
3. Check all fuses and relays: Pay close attention to the fuel pump relay.
4. Have the codes read: Use an OBD-II scanner to read any diagnostic trouble codes (DTCs) stored by the car's computer. This will give you a much more precise indication of the problem. Auto parts stores often offer free code reading.
5. Inspect the sensors: Visually inspect the CKP, CMP, MAF, and TPS sensors for obvious damage or loose connections.
Important Note: Diagnosing this type of problem accurately requires a bit of automotive knowledge and tools. If you're not comfortable working on cars yourself, it's best to take the Durango to a qualified mechanic for diagnosis and repair. Attempting some of these repairs without experience could lead to further damage or injury.
