1968 Mustang Starter Solenoid Wiring Diagram

When it comes to restoring or repairing your 1968 Mustang, one of the most important components that deserves your attention is the starter solenoid. A properly working starter solenoid guarantees a smooth start for your car every time. In this article, we will discuss the wiring diagram for the 1968 Mustang starter solenoid and provide you with useful tips and FAQs to help you get the job done right.

Understanding the 1968 Mustang Starter Solenoid

The starter solenoid is a critical component for starting your car. It consists of two large terminals and two small terminals. The large terminals are connected to the battery and the starter motor, while the small terminals are connected to the ignition switch and ground. When you turn the ignition key, a small amount of current is sent to the solenoid coil, which creates a magnetic field. This magnetic field then attracts a plunger that connects the two large terminals together, allowing current to flow from the battery to the starter motor. This causes the starter motor to spin, which cranks the engine and starts the car.

The Wiring Diagram for the 1968 Mustang Starter Solenoid

The wiring diagram for the 1968 Mustang starter solenoid is pretty straightforward. It consists of a few wires that connect the solenoid to the battery, starter motor, ignition switch, and ground. Here are the details:

Terminal Color Wire Gauge Description
S Yellow 12 Starter Motor
B Red 12 Battery Positive
I Red/Blue 16 Ignition Switch
G Black 16 Ground

The S terminal is connected to the starter motor, the B terminal is connected to the battery positive, the I terminal is connected to the ignition switch, and the G terminal is connected to ground. You will also notice that the S and I terminals are connected through a resistor. This resistor serves to reduce the voltage to the coil when the starter is engaged, preventing the ignition switch from being damaged by high voltage spikes.

FAQs

Q: Do I need to replace my starter solenoid?

A: If your starter solenoid is not working properly, it is recommended to replace it. Symptoms of a faulty solenoid include difficulty starting the car, clicking noises when turning the ignition key, and the starter motor not engaging.

Q: What are some common mistakes when wiring the starter solenoid?

A: The most common mistake when wiring the starter solenoid is connecting the wires to the wrong terminals. Make sure you refer to the wiring diagram and double-check your connections before starting the car. Another common mistake is forgetting to use a resistor to protect the ignition switch.

Q: How do I test my starter solenoid?

A: To test your starter solenoid, you will need a voltmeter or test light. Connect the positive lead of the voltmeter or test light to the S terminal and the negative lead to ground. Have someone turn the ignition key to the “Start” position. If the voltmeter or test light shows voltage, then the solenoid is working properly. If not, then you will need to troubleshoot the solenoid or replace it.

Q: Can I install a high-performance starter solenoid on my 1968 Mustang?

A: Yes, you can install a high-performance starter solenoid on your 1968 Mustang. High-performance solenoids are designed to deliver more power to the starter motor, resulting in faster cranking and improved performance. However, make sure you choose a solenoid that is compatible with your car’s electrical system and wiring.

Q: Is it difficult to replace the starter solenoid on a 1968 Mustang?

A: Replacing the starter solenoid on a 1968 Mustang is a relatively simple task that can be done in a few hours with basic tools. However, if you are not familiar with automotive electrical systems, it is recommended to seek professional help.

Now that you have a better understanding of the wiring diagram for the 1968 Mustang starter solenoid and some useful tips and FAQs, you should be able to tackle this important task with confidence. Good luck!