Description: You’ll know it’s time to replace your throttle placement sensor if your engine lacks acceleration power, or is idling roughly. Keep your engine idling smoothly with an OEM throttle position sensor kit from GM Parts Center. Get wholesale prices on a TPS kit, as well as fast shipping, the right fit. Call our experts if you’re unsure if this is the right part for you. We’re glad to help! Fitment: Avalanche, Escalade EXT. Throttle actuator.