What to know about the Exhaust Gas Recirculation/EGR Valve:
The EGR (Exhaust Gas Recirculation) valve helps in lowering the car’s exhaust emissions (gases from the tailpipe). It recirculates the portion of the gasses coming out of the engine by putting in back into the intake manifold, where the engine can burn it again, thereby reducing the emissions.
The EGR valve is positioned in the engine compartment (underneath the hood). Most engines need exhaust gas recirculation to meet emissions standards. If the EGR valve has gone bad, the car will not pass emissions.
Facts to Note:
SEE ALSO:HOW TO DO EGR COOLER REPLACEMENT
In the course of the EGR valve replacement, your mechanic should also check the vacuum hoses linked to the EGR valve. If the vacuum hoses are cracked (leaking), the EGR valve will not work properly.
How to Fix:
Scan the computer system in the car.
Check all vacuum related hoses to EGR valve.
Test EGR transducer.
Confirm the EGR port is not plugged.
Remove and change the EGR valve.
Clean the carbon deposit on EGR pintle.
Clear the trouble codes and test for proper operation of EGR valve.
It is a good idea to get an air induction (carbon cleaning) service done every 50,000 miles. This will clean out any sludge or carbon build up in the air intake system. Always keep up with regular oil changes; it will help stop sludge build up in the engine.
Common symptoms indicating you may need to change the Exhaust Gas Recirculation/EGR Valve:
Check Engine light is on.
Possible loss of power.
Car will not run smoothly (shake, stumble, may stall).
READ ALSO:WHAT ARE THE SIGNS OF A BAD EGR VALVE
Importance of this service:
The EGR valve helps your vehicle recycle gas. The EGR valve is in charge of taking the gas that comes out of the engine, and sending it through the intake manifold, where the engine can utilize it again. Without the EGR valve your vehicle will not recycle and reuse any of its gas, which increases the emissions. Without the EGR, your car will not pass an emission inspection.