How to Determine if the Throttle Body Needs Cleaning?

[StTimothy]

To determine if the throttle body needs cleaning, check whether the car accelerates stably. For any fuel-injected vehicle, when the engine is under no load, shift to neutral, press the accelerator pedal to raise the RPM to 3,000, then suddenly release the pedal. Observe where the tachometer needle drops to make the judgment. Below are the specific functions of the engine throttle body: 1. Control the flow of the carburetor: It regulates the amount of air entering the carburetor to adjust the concentration of the air-fuel mixture. Normally positioned at the lowest point, the higher the position, the less air enters. When the weather turns cold, the air-fuel concentration decreases, and the position can be adjusted upward to change the mixture concentration, making the car easier to start. 2. Deliver the air-fuel mixture and expel exhaust gases: The valves are divided into intake and exhaust valves. The intake valve draws the air-fuel mixture into the cylinder for compression and combustion, while the exhaust valve expels the burned exhaust gases and dissipates heat.