Solenoid to Starter Voltage: What's the Correct Amount?

amount of voltage going from solenoid to starter

Amount of Voltage Going from Solenoid to Starter

The amount of voltage going from the solenoid to the starter is a critical factor in ensuring the proper functioning of a vehicle's starting system. When the ignition switch is turned to the "start" position, the battery voltage is sent to the solenoid, which then directs the voltage to the starter motor. The voltage required to turn the starter motor is typically around 12 volts, but it can vary depending on the vehicle's make and model.

Typical Voltage Readings

* When the ignition switch is turned to the "start" position, the voltage reading at the solenoid should be around 12 volts.
* The voltage reading at the starter motor should also be around 12 volts, but it may drop to around 10-11 volts when the starter is engaged.
* If the voltage reading at the starter motor is significantly lower than 10 volts, it may indicate a problem with the starting system, such as a faulty solenoid or starter motor.

Voltage Drop Considerations

Voltage drop is an important consideration when measuring the voltage going from the solenoid to the starter. Voltage drop occurs when there is resistance in the wiring or connections between the solenoid and starter motor. This resistance can cause the voltage to drop, resulting in a lower voltage reading at the starter motor. To minimize voltage drop, it's essential to ensure that the wiring and connections are clean, tight, and free of corrosion.

Some common causes of voltage drop include:

• Corroded or loose connections
• Wiring that is too small or damaged
• High resistance in the solenoid or starter motor

When measuring the voltage going from the solenoid to the starter, it's essential to use a multimeter and take readings at different points in the circuit to identify any voltage drops.