How To Determine If The Starter Motor Is Faulty

To determine whether a car starter is faulty, the following aspects can be checked:
Firstly, observe the performance of the starter motor. If the starter motor fails to function properly, such as the drive gear not rotating, insufficient power, or abnormal noise, this may be a precursor to starter motor failure.
Secondly, check the condition of the battery. Insufficient battery power, loose connection lines, and poor contact may cause the starter to malfunction. Therefore, ensuring sufficient battery power and good connection lines is the first step in determining whether the starter motor is faulty.
Next, check the power cord and electromagnetic switch of the starter motor. If there is a problem with the power cord or if the contact plate of the electromagnetic switch is burned, it may also cause the starter to not work properly.
In addition, it is necessary to check the transmission gear of the starter motor. If the gear gets stuck or rotates inflexibly, it may be necessary to clean or replace the starter drive gear.
In addition, if the ignition switch, start relay, or electromagnetic switch is stuck, the coil is open or short circuited, it may also cause the starter to not function properly. For these situations, a test light or a multimeter can be used for testing.
Finally, if the vehicle is unable to measure the starting terminal or if the measurement is inconvenient, the starting relay and starting fuse can be checked first. After ensuring that these components are working properly, disassemble the starter for further inspection.