The Cadillac EGR valve is mounted to the intake manifold of the engine in most vehicles, a small component that serves a purpose in two separate vehicle systems to aid in the efficient operation of the engine. In newer model vehicles, the Cadillac EGR valve is electronic, while in older vehicles it uses a vacuum connection to function. The Cadillac EGR valve helps to prevent detonation in the engine, which is the explosion of fuel in the combustion chamber rather than the clean burn of fuel that is the source of efficient engine power and performance. Detonation can cause damage to the engine, creating intense heat and pressure that can cause the failure of critical seals and delicate parts. The Cadillac EGR valve also helps to reduce the harmful emissions produced by the vehicle, very necessary in this age of strict emissions regulations. The proper function of the Cadillac EGR valve is needed to keep the pollution produced by the vehicle to an acceptable level to meet these tough emissions inspection policies, and to keep the air we breathe clean. If the Cadillac EGR valve has malfunctioned, the vehicle can begin to have performance problems such as a loss of engine power, engine ping or knock, excess exhaust emissions and poor fuel mileage. The Cadillac EGR valve is specifically engineered for each engine model, making it important to choose the right one to keep your particular vehicle model running smoothly. We carry a selection of quality Cadillac EGR valve replacements in our online catalog, all at great prices. Our secure site will make it safe and easy to order your Cadillac EGR valve replacement or our toll-free phone line is just as convenient.