How to troubleshoot starting issues on a 1968 Ford Mustang GT Fastback (Bullitt)?

Having trouble starting your 1968 Ford Mustang GT Fastback (Bullitt) can be a frustrating experience. This issue can manifest in several ways, such as the engine not turning over, unusual sounds during startup, or the car completely failing to start. These problems can stem from a variety of sources, including the battery, ignition system, fuel system, or even mechanical faults. Here is how to solve this issue step by step.

Step 1: Check the Battery

The battery could be drained or have poor connections.

1. Locate the Battery: Open the hood and find the battery on the passenger side of the engine bay. It is a rectangular box with two cables attached.
2. Inspect the Terminals: Ensure the terminals are clean and the connections are tight. Look for corrosion, which appears as white or bluish powder.
3. Test the Voltage: Use a multimeter to check the battery voltage. A healthy battery should read around 12.6 volts; if it's below 12 volts, the battery may need charging or replacement.

Step 2: Inspect the Ignition System

Issues in the ignition system can prevent your Mustang from starting.

1. Locate the Ignition Coil: Find the ignition coil near the front center of the engine. It's a cylindrical object connected to the distributor.
2. Check for Spark: Remove one of the spark plug wires and insert a spark tester. Crank the engine and look for a visible spark.
3. Examine Spark Plugs: Remove the spark plugs, which are located along the cylinder head, and check for wear or fouling. They should be replaced if they are discolored or damaged.

Step 3: Evaluate the Fuel System

The engine requires a steady fuel supply to start and run.

1. Locate the Fuel Pump: The fuel pump can be found on the side of the engine block. It has an arm connected to a diaphragm inside.
2. Check Fuel Pressure: Ensure there is adequate fuel pressure using a fuel pressure gauge. Attach the gauge to the fuel line and turn the ignition key to the "on" position without starting the engine.
3. Inspect the Fuel Filter: The fuel filter is generally located along the fuel line, near the fuel tank. Replace it if it appears clogged or dirty.

Step 4: Examine the Starter Motor

A malfunctioning starter motor can keep the engine from turning over.

1. Locate the Starter: The starter motor is mounted near the bottom of the engine on the driver's side. It looks like a small cylinder with wires attached to it.
2. Test the Starter: Use a remote starter switch to directly activate the starter. If the engine turns over, the starter may be fine, and the issue could be elsewhere.
3. Check Connections: Inspect the wiring and terminals connected to the starter for any signs of wear or damage.

Step 5: Review the Mechanical Components

Sometimes the issue can be mechanical rather than electrical or fuel-related.

1. Inspect the Timing Chain/Belt: This is found inside the engine cover on the front of the engine. Look for signs of wear or misalignment.
2. Check the Engine Oil: Locate the oil cap on the top center of the engine. It's a round, plastic cap with an oil sign and a handle. Ensure that the oil level is within the recommended range.

By systematically checking these components, you can often determine and resolve the starting issues with your classic 1968 Ford Mustang GT Fastback (Bullitt). Always refer to your vehicle's service manual for specific details and consult with a professional mechanic if needed.