Egr Valve

There is two sizes of wrenches needed for this vehicle EGR valve, but I must advise you if you are replacing the valve because of diagnostic trouble codes. There is a bulletin published that states if certain EGR codes are set, replace the DPFE sensor with an updated version. The DPFE sensor is a feedback sensor that sends a voltage to the computer of how much the EGR is flowing. It is a common failure and much easier to replace.