What happens when the idle motor fails?

[BriannaMarie]

The idle motor is definitely related to the idle speed, and failure will cause high idle speed. The idle motor will make abnormal noises before failure, so pay attention. If there is a circuit problem, the idle speed may suddenly become low. The function of idle speed: During idle speed, the cross-sectional area of the idle air passage is changed according to the engine temperature and load, so that the engine has the best idle speed under different conditions. The idle motor is mainly used to control the car's idle speed, and its purpose is to adjust the idle speed according to the engine load during idle. Introduction to idle speed: Idle speed refers to the operation of the engine without load, only overcoming the friction resistance of its own parts and not outputting power externally. The minimum speed required to maintain stable engine operation is called idle speed, which is one of the five basic operating conditions of the engine. For an engine with good working performance, its idle speed is generally 550-800 rpm.

[Landon]

I've been repairing this thing for decades, and I've seen plenty of issues with idle speed motors. When the car is idling, the RPM fluctuates wildly, sometimes high, sometimes low, like it's dancing. Cold starts are particularly prone to stalling, and when you're idling with the AC on at a red light, it can make a buzzing noise. The most annoying part is the engine shaking violently, and the dashboard lights might flicker. If not addressed promptly, fuel consumption skyrockets, and emissions exceed standards. I suggest owners start with simple checks, like seeing if the idle speed is stable or scanning for OBD codes. If the motor is stuck, just disassemble and clean out the dust—it's cheap and effective. Prevention isn't hard either; regular engine maintenance to prevent carbon buildup ensures the idle control remains rock solid, making driving much smoother.

[VanLola]

My car had this issue before, a faulty idle air control valve can really be a hassle. While driving, the RPM would fluctuate up and down, making the car feel like it was shuddering, and it was particularly prone to stalling at traffic lights. Fuel consumption was also noticeably higher than usual, costing me dozens of dollars more per month. After getting it repaired, I found out that accumulated grime had caused the valve to seize up, and the mechanic fixed it with just a cleaning. Before it was fixed, driving was nerve-wracking, especially when changing lanes on the highway with an unstable engine, which could easily lead to accidents. I recommend everyone to stay vigilant, address issues early to save money, hassle, and ensure safety. Remember not to wait until it gets serious to repair, and regularly check the idle condition.

[Ellis]

Idle speed failure poses significant safety risks. Once the motor malfunctions, the idle speed becomes uncontrollable, with RPM fluctuating wildly. This can easily cause sudden stalling while driving, especially during parking or startup, leading to power steering failure and potentially hardened brakes. In traffic jams, being unable to move may result in rear-end collisions. If not repaired promptly, engine load increases, raising fuel consumption by over 20%. Immediate action is crucial—seek professional diagnosis at authorized shops to clean or replace the idle speed motor. Prevention is key; maintaining clean air filters can reduce failure risks.