When the engine experiences a low idle that makes the vehicle feel like it is about to shut off at stop lights, this Idle Air Control Valve increases air delivery to maintain the minimum idle speed required for accessory running; the IAC Valve prevents the engine from dropping below the stall threshold. The Idle Control Valve features a precision-ground valve seat and plunger tip geometry matched to create a metal-to-metal line contact seal, while the Engine Idle Control Valve keeps leakage within a very small range while allowing fine air metering at small openings. Before removing the old IAC Valve, disconnect the battery negative terminal and let the engine cool; take a photo of the vacuum hose connections and component orientation for reference, then loosen the two mounting bolts and pull the Idle Air Control Valve straight out without twisting; install the replacement part with the included gasket and tighten the screws diagonally. Friendly Reminder: To ensure accurate selection, please compare the product images and specifications before ordering to confirm that the parts match your vehicle model. If you have any questions before or after placing your order, please customer service. We will provide detailed answers and assist you in finding the appropriate solution., Manufacturer: SZYNBQ