Throttle Bodies & Aftermarket Throttle Body Replacement Parts & Kits

What Are the Parts of the Throttle Body?

The throttle body is a critical component of your vehicle's air intake system. It consists of several key parts, including:

• Throttle Plate: This movable plate controls the amount of air entering the engine. It opens and closes in response to driver input through the accelerator pedal.
• Throttle Shaft: The throttle plate is attached to a shaft that rotates to control airflow. It's typically connected to the accelerator pedal via a cable or electronic sensor.
• Idle Air Control Valve (IACV): The IACV regulates the engine's idle speed by controlling the amount of air that bypasses the closed throttle plate when the vehicle is at rest.
• Throttle Position Sensor (TPS): The TPS monitors the position of the throttle plate and sends signals to the engine control unit (ECU) to adjust fuel injection and ignition timing accordingly.
• Throttle Body Housing: All of these components are housed within the throttle body housing, which connects to the intake manifold and air filter assembly.

Together, these parts work in harmony to control the engine's air supply, allowing it to operate efficiently and respond to driver input.

What Happens When the Throttle Body Goes Out?

When the throttle body malfunctions or fails, it can lead to various issues, including:

• Reduced Engine Performance: A faulty throttle body may cause poor acceleration, reduced power, and sluggish engine response.
• Stalling or Rough Idle: Problems with the idle air control valve (IACV) can result in stalling or an unstable idle when the vehicle is at rest.
• Check Engine Light: Throttle position sensor (TPS) issues can trigger the check engine light and diagnostic trouble codes (DTCs).
• Poor Fuel Efficiency: Inefficient air intake can lead to decreased fuel economy.

If you experience any of these symptoms, it's crucial to have your throttle body inspected and repaired or replaced as needed to restore proper engine function.

How Much Does a Throttle Body Part Cost?

The cost of a throttle body part can vary depending on your vehicle's make and model, as well as the specific component that needs replacement. On average, the price range for a throttle body part can be anywhere from $50 to $500 or more.

The final cost will also depend on whether you choose an OEM (original equipment manufacturer) part or an aftermarket replacement. Additionally, labor costs for installation may apply if you have a professional mechanic perform the replacement.

It's important to address throttle body issues promptly to maintain optimal engine performance and fuel efficiency. If you suspect a problem with your throttle body, consult a qualified mechanic for diagnosis and repair options.