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How to Troubleshoot a 2001 Mustang

Starting problems can happen to any vehicle from time to time and require troubleshooting to determine the cause. Although your 2001 Mustang should start every time the ignition switch engages, there are those rare occasions when cranking the vehicle doesnt go according to plan. Systematically checking the various components that make up the starting circuit is part of the troubleshooting process.

Instructions

1

Start with the Mustangs battery. Remove and clean the battery terminals and posts for an improved connection to the starting circuitry. Loosen the terminal bolts with a 5/16-inch wrench and remove them from the posts. Brush both the posts and the terminals clean with a wire brush before reconnecting the terminals to the battery.

2

Ensure the battery is properly charged by connecting it to a battery charger. Connect the positive and negative leads from the charger to the respective posts on the battery. When the charger is plugged into an electrical outlet, the meter on the face of the charger will indicate the level of charge that exists in the battery. If the battery is low and will not take a charge, replace the battery with a new one.

3

Check that the alternator is properly sending a charging current to the battery. Most auto parts stores provide an alternator and battery test as a free service to their customers. If the alternator is not recharging the battery, replace it with a new or refurbished one.

4

Inspect the fuel pump safety switch if the car cranks but will not start. The fuel safety switch for a 2001 Mustang is located on the drivers side of the trunk compartment. Pull the carpeting down just in front of the drivers side tail light and depress the reset button on the safety switch, if it is tripped. The safety switch is designed to shut fuel off to the engine in case of an accident. However, the switch will sometimes trip for no apparent reason.

5

Check for faulty spark plugs if the engine cranks but fails to start. Old or fouled plugs will fail to ignite the fuel/air mixture in the engine, preventing it from starting on its own. Fouled spark plugs appear soaked in fuel. Burns or gouges in the business end of a spark plug are an indication that it needs to be replaced.