Exhaust gas recirculation valves, or EGR valves, can be thought of as a switch to control the flow of exhaust gas
from your vehicle's engine. Many rely on a vacuum to open and close, but more modern vehicles often employ computer-controlled
electronic valves. In either case, the part works to recirculate some of your engine's exhaust back into the intake
manifold. The gases that are redirected are not combustible, and serve to reduce combustion temperatures and emissions.
Your vehicle's EGR valve also serves an environmental purpose. By recycling exhaust fumes, it reduces the total volume
of such fumes. This happens because the recirculated exhaust that enters the EGR still contains some amount of fuel because
not all of the gasoline introduced to cylinders combusts the first time around. The idea is to enhance engine efficiency
and fuel economy while cutting emissions.
An EGR valve that is either partially blocked, fully blocked or has failed
will cause a rough idle, and might also cause stalling, knocks and pings. Depending on how familiar you are with engines
and where the part is located, you may also be able to watch the valve stem to see
if it moves while a helper revs the accelerator between 1,500 and 2,000 RPMs. If it doesn't move, there's a problem with
it. A failed EGR valve will also register a trouble code in the engine computer and illuminate the Check Engine light.
theseengine valves is as simple as unfastening two bolts and unplugging
the connected wiring from its harness. If you plan to reuse the gasket, it’s important to ensure that it's
handled with care and not damaged during removal. Of course, you can also purchase this part separately and replace
it as preventive maintenance.
There are hundreds of EGR valves and accessories to choose from when
you shop with us. Many of these parts are available with warranties ranging from one year to lifetime for your peace
of mind and convenience.