When i pull the egr valve on my car there is 2 holes one is rectangular that goes to the egr passage way and the other is a round hole. Should the round hole be open or is it just a vaccume thing. Cause there is no opening in the bottom of the round hole. Idk if it needs cleaned or should it just be a empty hole with no passage?

 

The square hole goes to the intake manifold. The round hole is where the exhaust gases are come from the exhaust of the engine. It may just be difficult to see the source for the round hole. The plunger of the EGR valve sits in that round hole.

Have you tried cleaning the EGR ports on the intake manifold? Those tend to cause more problems than the passages for the EGR valve. In other words, why are you cleaning out the valve part?

 

Cleaned the ports. But the round hole is completly filled with carbon where the plunger needle looking thing sits. I couldnt even tell there was supposed to be a hole. How big is it supposed to be? to me it just looked like nothing was in there at all. I sprayed it with carb cleaner and it just filled up so i thought it was supposed to be like that so i just put it back together. I guess i should dig all the carbon out of there