Im trying to remove my PCV valve and screwed up the plastic grommet and figure I might as well remove the upper intake now. I've found the four long bolts on top, four on the driver's side and the two holding the EGR/bracket onto teh side. Those were nuts mounted on studs, how can I get the brackets off those? Are there any more bolts/nuts because the stupid thing still won't budge. Oh yeah, throwing Code 22, oil in the intake, idles fine, stumbles a bit, then stays good about 2500+ in the revs. I need some ideas. The motor was rebuilt 25K ago as well. I really need some help here to get this back to normal.