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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 flexplate 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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