NPAUTO Idle Air Control Valve & Throttle Position Sensor — 1999-2002 Chevy & GMC Compatibility (217-1806)

Overview

NPAUTO presents a purpose-built Idle Air Control Valve (IAC) and Throttle Position Sensor (TPS) bundle designed for a broad range of GM engines from 1999 through 2002. This pair is crafted to support smoother idle and more stable engine behavior under everyday driving conditions, offering a practical upgrade for trucks and SUVs you rely on for work and family trips.

What this kit covers

• Vehicle Fit — Chevy: 4.8L, 5.3L, 5.7L, 6.0L engines across Silverado 1500/2500, Suburban 1500/2500, Tahoe, Avalanche 1500, and more (1999–2002).
• Vehicle Fit — GMC: Sierra 1500/2500, Yukon and Yukon XL 1500/2500, Sierra 1500/HD, 3500, and related models (1999–2002); Pontiac Firebird and GTO references appear in the interchange notes as applicable.
• Interchange Part Numbers — Includes 217-1806 and other cross-reference identifiers to aid compatibility across listed models.

Quality and reliability

• Premium materials designed to withstand engine heat, helping the unit perform consistently under demanding conditions.
• Engineered to address common idle and starting symptoms while remaining grounded in verifiable design goals.

Easy installation

• Designed for a straightforward, plug-and-replace experience in place of the old valve and sensor.
• No special tools or advanced technical steps required for most users, supporting a hassle-free upgrade.

Warranty and support

• 1-year warranty backed by responsive customer support for questions or concerns.

In daily use, the combination of an idle control valve and throttle position sensor may help promote smoother idling and more predictable throttle behavior. You’ll find the design focuses on reliability and compatibility, with clear cross-reference numbers and durable components intended to perform consistently across the listed GM vehicles. While results can vary by vehicle condition and driving environment, this kit is positioned as a practical upgrade option for drivers seeking straightforward maintenance improvements rather than a guaranteed outcome.

Real-world scenarios

• Urban driving with frequent stops and starts where stable idle can matter for smooth operation.
• Cold starts on cool mornings paired with moderate engine loads.
• After maintenance or part replacements, providing a familiar baseline for idle and throttle response.