The Lincoln Aviator Secondary Air Injection Check Valve is a one-way valve that delivers fresh pressurized air into the exhaust while preventing harmful backflow to encourage cleaner combustion from the very first moments of engine operation. This Secondary Air Injection Check Valve has been tried and tested on both early and current Lincoln SUVs, and its compact size helps improve your exhaust flow. It sits before the exhaust manifold and again just after at the catalytic converter. Above all, it opens up under the pump pressure and then proceeds to shut tightly against exhaust pulses. Every Secondary Air Injection Check Valve prevents heat and corrosive gases from entering the pump, so the Lincoln model's AIR system remains reliable for thousands of start ups. Every Secondary Air Injection Check Valve reduces hydrocarbons and carbon monoxide, improves sensor warm-up, and helps the Lincoln emissions strategy achieve stringent standards without causing any perceptible burden on the driver, allowing the oxygen to reach the converter more rapidly. Owners commend the smooth-running affirmation that a clean Secondary Air Injection Check Valve delivers, with the Aviator's idle smoothness, quick throttle response, and no more warning lights on the dash. The architecture of the Lincoln Aviator is the same for every build year, making parts familiarity a simple process for replacement. In addition, the Secondary Air Injection Check Valve's stainless and high-temperature polymer bodies provide stout resistance to rust and thermal shock. The Secondary Air Injection Check Valve has extended use compatibility for rear wheel and all wheel Aviator trims, from launch editions of 2003 to recent hybrid influenced Aviator packages, a good family of parts supporting an impressive production span. If a Secondary Air Injection Check Valve sticks or leaks, the control module can register emissions codes and fuel economy may drop. Periodically inspecting your hoses is something any Lincoln driver can do to help keep their Aviator efficient, quiet, and safe.
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