The throttle body is a valve located along the piping between your air intake, and your intake manifold. It’s here where fresh air is slurped down into your engine for combustion – but only as much air as the throttle body will allow to pass. In the closed position, your throttle body keeps your engine almost entirely air-free, but when in the wide open position, this valve will really let that engine roar.
So how do you control your throttle body? It may be easier than you think.
You dictate the openings and closings of your throttle body’s butterfly valve every time you drive by using a conveniently installed foot pedal. That’s right – what we call the gas pedal might be more appropriately named the air pedal, since oxygen flow is what it’s more directly controlling.
Older carburetor-run vehicles would use a system of vacuums and pressure-sensitive triggers to release a complementary amount of fuel depending on your current airflow.
More modern vehicles use an electronic sensor to tell the onboard computer just how much fuel to dispense to match the incoming airflow.
In the old days, your gas pedal would be physically linked to your throttle body by a cable, but now sensors and servo motors are often opted for to get the job done.
How often should the throttle valve be cleaned?
Generally, the car throttle valve is cleaned every 20,000~30,000 kilometers.
If there is no idling instability, engine shake, significant increase in fuel consumption, acceleration and weakness, etc. It is best to clean it. Carbon deposition is a process of slow accumulation, and it will not directly cause serious malfunctions. Therefore, it is necessary to pay attention to the condition of the vehicle and solve the problems in time.
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