If your 1995 Mustang GT is suddenly shutting off while driving, the problem is far more likely to be one of these:
* Fuel Pump: A failing fuel pump is a prime suspect. It might be intermittently failing, providing insufficient fuel pressure, or completely stopping. This is a common cause of a car cutting out while driving.
* Fuel Filter: A clogged fuel filter can restrict fuel flow to the point where the engine starves for fuel, causing it to stall.
* Crankshaft Position Sensor (CKP): This sensor tells the computer the position of the crankshaft. A faulty CKP sensor can cause the engine to lose synchronization and shut down.
* Mass Airflow Sensor (MAF): This sensor measures the amount of air entering the engine. A dirty or faulty MAF sensor can cause the engine to run lean or rich, leading to stalling.
* Ignition System: Problems with the ignition coil, distributor (if equipped), spark plug wires, or spark plugs themselves can cause misfires and stalling.
* Throttle Position Sensor (TPS): A faulty TPS can give the engine control module incorrect information about throttle position, leading to erratic running and stalling.
* Computer (PCM): While less common, a failing PCM can cause a variety of problems, including intermittent stalling.
* Wiring Issues: Damaged, corroded, or loose wiring connections anywhere in the fuel system or engine control system could interrupt power or signal flow and cause the engine to die.
Troubleshooting Steps:
1. Check for diagnostic trouble codes (DTCs): Use an OBD-II scanner to read any stored codes from the car's computer. These codes can point you toward the specific problem.
2. Check fuel pressure: A mechanic can test fuel pressure to see if the fuel pump is delivering enough fuel.
3. Inspect fuel filter: Check the fuel filter for clogging.
4. Inspect ignition components: Look for obvious signs of damage to spark plug wires, the distributor cap (if applicable), and the ignition coil.
Because diagnosing this problem requires testing fuel pressure and electrical components, it's highly recommended to take your Mustang to a qualified mechanic for diagnosis and repair. Attempting to diagnose and fix this yourself without the proper tools and knowledge could be dangerous and potentially damage other components.
