having problems removing my egr valve
i have a 2001 ford focus zx3 and the egr valve is in the back near the intake. i got the car from a used car lot and my check engine light is on. i had the code checked and it came up egr valve. the egr valve is severely rusted and the bottom on the egr valve has a nut, which is also rusty. i cannot get my egr valve out. how would i go about getting it out? i tried spraying it with pb blaster and it still wont break. there is no room for me to get a breaker bar in the give me leverage. is there a trick to this? also am i even supposed to turn the nut? only tool i have is a crescent wrench which i can get to fit the nut but would there be a better tool i can buy to make this job easier on me? any help would be greatly appreciated!