What are the symptoms of a faulty car idle motor?

1 Answers
LeJonathan
07/29/25 3:32pm
Idle motor failure can be judged from the following aspects: Generally, a damaged throttle idle motor will cause unstable idling or engine stalling after heavy throttle application. These symptoms indicate an issue with the idle motor. The technical name for the idle motor is stepper motor. More information about the idle motor is as follows: 1. The idle motor is a component that controls the idle speed of motor vehicles. When the engine runs without load, it is called idling. The function of the idle motor is to adjust the cross-sectional area of the idle air passage according to engine temperature and load during idling, ensuring optimal idle speed under various conditions. 2. Normally, to determine whether the idle motor is damaged, first perform fault diagnosis and check for any fault codes. If present, follow the displayed fault codes to identify the cause of the problem.
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