How To Replace a Starter Solenoid

Basically, a starter solenoid is a high-voltage current switch that connects to the starter motor of the battery. This switch can be found within the front fender that is near the engine’s compartment battery. It may also be mounted on the top part of the starter motor. A vehicle’s ignition system utilizes it to energize the starter motor, which is responsible for starting up the car’s engine. Numerous factors affect the starter solenoid’s proper operation, though. So time will come that your car’s solenoid will wear out. Read the simple guides below to help you change a car’s starter solenoid—be it mounted-away or on-starter solenoid.

Replacing Mounted-Away Solenoid

  • Find the starter solenoid. Park your car on a stable surface. Open the hood. The easiest method to find the solenoid is to track the red positive battery cable. This cable is attached to the starter solenoid.
  • Remove the old starter solenoid. Disconnect the negative black cable from the car battery. Disconnect the wires and cables from the solenoid through wrench, sockets, or ratchet. Take note of where every wire and cable is attached to the solenoid. This way, you can reattach the wires properly on the new starter solenoid. Remove the mounting bolts of the starter solenoid. Take off the old starter solenoid and set this aside.
  • Install the new starter solenoid. Lock the new solenoid to the car’s fender. Connect the wires and the battery cables to the new starter solenoid. Reconnect the negative black cable to the car battery.

Replacing On-Starter Solenoid

  • Find the car’s starter motor. Ensure that you’ve got enough room and access to remove the motor from the vehicle. If needed, lift your car using a jack and support the car with jack stands.
  • Disconnect the negative cable from the battery. Disconnect the wires and cables from your motor and starter solenoid. Make notes about the location and positioning of the wires and cables that are connected to the starter motor and solenoid. It will help you remember their positions so you can reconnect them in their proper places easily.
  • Uninstall the old starter solenoid. Remove the mounting bolts from the starter motor first. Raise the starter solenoid assembly, enough so it is lifted away from the engine compartment. Remove the bolts from the starter motor and set aside the brackets, shims, and other starter motor parts for reinstallation. Unscrew the starter solenoid from the starter motor and take it off the car.
  • Install the new starter solenoid. Position it to the same position of the old started solenoid. Install the starter motor and other parts that you have taken off from the car. Connect the wires and cables to the solenoid and starter motor. Then, lower your vehicle and remove the car jack and stand. Re-attach the negative black battery cable.

Wrap an electrical tape onto the red cable terminal that is attached to the starter solenoid if you don’t want to disconnect your car’s battery from the engine. It will help you avoid electric shortage that might damage the sensitive electronic mechanisms of the car.

Make a research if you’re having difficulty or doubts in doing the task. You can also hire a car technician to do the task for you.


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