As for why a car might suddenly stop at the strangest of times, there are many possibilities beyond just the fuel pump, especially with an older vehicle like a Dodge Colt. Here are some of the most likely culprits:
* Fuel Pump Failure: A failing fuel pump can't deliver fuel to the engine, leading to a sudden stall. This is more likely to happen when the pump is hot (after driving for a while) or under stress (going uphill or accelerating).
* Fuel Filter Clogging: A clogged fuel filter restricts fuel flow, also causing a sudden stall.
* Ignition System Problems: Issues with the ignition coil, distributor (if equipped), spark plugs, or wires can prevent the engine from igniting the fuel-air mixture.
* Electrical Issues: A failing alternator, battery, or other electrical component could interrupt the fuel pump's power supply or other critical systems.
* Carburetor Problems (if applicable): If your Colt has a carburetor, problems like a clogged fuel jet or a malfunctioning float could starve the engine of fuel.
* Fuel Delivery Issues: Leaks in the fuel lines could lead to a loss of fuel pressure, causing the engine to stall.
* Crankshaft Position Sensor (CPS) Failure (if applicable): Modern fuel-injected cars often rely on this sensor to tell the engine when to inject fuel. A failing CPS can lead to a sudden stall.
To diagnose the problem: You'll need to systematically check these components. Start with the simplest and most accessible, like checking the fuel filter. If you're not comfortable working on cars, take it to a mechanic for diagnosis. They have the tools and experience to pinpoint the issue accurately and safely. Don't try to diagnose a fuel system issue with the car running, as this is very dangerous due to the flammability of gasoline.
