What are the symptoms of a burnt-out car throttle?

[ClaraAnn]

When a car's throttle is burnt out, the following phenomena may occur: 1. Unstable engine idle speed, with high idle speed persisting without dropping. 2. The engine may have no idle speed. 3. Difficulty in starting the engine. 4. Insufficient engine power and poor acceleration performance. 5. Black smoke from the car's exhaust pipe and increased fuel consumption. Here is some related information: When cleaning the throttle, it is not necessary to disassemble it, but the sealing parts of the intake must be thoroughly cleaned. The idle speed motor must be removed to be cleaned properly. There are pros and cons to both disassembling and cleaning the fuel injectors and cleaning them without disassembly. Generally, maintenance stations recommend cleaning without disassembly to avoid other unnecessary waste.