How to replace the ignition coil on a 1967 Shelby GT500?

Replacing the ignition coil on a 1967 Shelby GT500 is a relatively straightforward task, but it demands a bit of care and attention to detail to ensure your classic car keeps running smoothly. Symptoms of a faulty ignition coil include engine misfires, rough idling, or even the engine failing to start. If you detect any of these issues, it’s time to inspect and possibly replace the ignition coil. Here is how to solve this issue effectively:

Step 1: Prepare Your Workspace

Before starting any work, ensure your car is parked on a flat surface and the engine is completely cool. Open the hood and secure it with the hood prop rod. Disconnect the negative terminal of the battery to avoid any electrical shorts while you work.

Step 2: Locate the Ignition Coil

The ignition coil on a 1967 Shelby GT500 is typically found mounted on the passenger side of the engine bay. It is a cylindrical component connected to the distributor cap via a coil wire. The ignition coil is secured with a bracket that is bolted to the intake manifold.

Step 3: Remove the Electrical Connections

Carefully disconnect the coil wire from the top of the ignition coil by gently pulling it off. Then, using a screwdriver, loosen and remove the small bolts securing the wire terminals to the ignition coil. Make sure to remember or label the connections so you can reinstall them correctly later.

Step 4: Remove the Old Ignition Coil

Using a socket wrench, remove the bolts that hold the coil bracket in place. Once the bolts are removed, you can lift the old ignition coil and its bracket out of the engine bay. Be careful not to damage any surrounding components.

Step 5: Install the New Ignition Coil

Place the new ignition coil in the same orientation and position as the old one. Secure it with the mounting bracket and tighten the bolts using your socket wrench. Ensure that the coil is firmly in place and not wiggling.

Step 6: Reconnect the Electrical Connections

Reconnect the wire terminals to the new ignition coil, referring to any labels or memory for correct placement. Tighten the small bolts to ensure secure connections. Attach the coil wire back to the top of the ignition coil, making sure it is snug.

Step 7: Reconnect the Battery

Once all connections are securely in place, reconnect the negative terminal of the battery. This will restore power to the ignition system.

Step 8: Test the Installation

Start the engine and observe its behavior. It should start smoothly and run without misfires. Listen for any irregularities and ensure that everything is running properly. If the engine starts and runs well, you have successfully replaced the ignition coil.

By following these steps, you can replace the ignition coil on your 1967 Shelby GT500 and ensure it continues to perform at its best. Always consult your vehicle's manual or a professional if you are unsure about any step in the process.