Throttle Position Sensor+TPS Idle Air Control Valve For Chevy GMC Buick Cadillac

Throttle Position Sensor and Idle Air Control Valve for Chevy GMC Buick Cadillac

This throttle position sensor and idle air control valve set is an engine management replacement pair that reports throttle blade angle and regulates idle airflow on GM vehicles.

Overview

This throttle position sensor and idle air control valve pair covers the two components that most often cause rough idle, stalling, and throttle hesitation on GM engines. The throttle position sensor relays throttle blade angle to the computer, while the idle air control valve meters air at idle to hold a steady speed. Both parts are aimed at owners of Chevy, GMC, Buick, and Cadillac vehicles chasing drivability faults.

Built For Performance

• Throttle position sensor delivers accurate throttle blade angle signal to the ECM
• Idle air control valve regulates bypass air to stabilize idle speed
• Direct replacement fit for the factory sensor and valve locations
• Sealed electrical connectors resist underhood heat, moisture, and vibration
• Sold as a matched pair so both common idle fault sources are covered

Fits These Machines

• for Chevy vehicles with the listed throttle body configuration
• for GMC vehicles with the listed throttle body configuration
• for Buick vehicles with the listed throttle body configuration
• for Cadillac vehicles with the listed throttle body configuration

On-The-Job Use

• Fixing rough or fluctuating idle on GM engines
• Repairing stalling and hesitation after throttle body service
• Clearing throttle position sensor and idle control fault codes
• Restoring smooth idle after intake or throttle body work

Specs At A Glance

Good To Know

Q: Can a bad throttle position sensor and idle air control valve cause the same symptoms? A: Both can produce rough idle, stalling, and hesitation, which is why replacing them as a pair is common practice. Scan for codes first to confirm which circuit is at fault.

Q: Do I need to relearn idle after installing these parts? A: Many GM engines benefit from an idle relearn or throttle body reset after replacement. Follow the procedure for your specific model year and engine.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.