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So, A car starter motor is an electric motor that turns over or “cranks” the engine to start it.
Consequently, Consisting of:
- A powerful DC electric motor.
- A the starter solenoid.
Consequently, To turn over the engine, the starter motor requires a very high electric current. As a result, The battery has to have sufficient power. If the battery is discharged, the lights in a car might come on. But, It won’t be enough power to turn over the starter motor.
So, What are the symptoms of a bad starter motor:
- When starting a car with a fully charged battery, there is a single click or nothing happens at all.
- The starter motor doesn’t run, even though there is a 12-Volt power at the starter control terminal.
Another symptom is when the starter motor runs, but fails to turn over the engine. Often, this might cause a loud screeching noise when starting the car. Of course, this could also be caused by damaged teeth on the ring gear of the flex-plate or flywheel. Finally, Every starter motor also has a starter solenoid.
A typical starter solenoid has one small connector for the starter control wire and two large terminals:
- One for the positive battery cable
- One for the thick wire that powers the starter motor itself
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