Yes, Dip stick pops out. Pcv valve has been replaced and is ok. This is strange problem because its like motor operates in closed envirament. Car cranks right up and runs good for about 3 minutes driving time. Then runs like crap and if I press gas petal to go faster than the 5 mph its going, it will spudder and blow oil everywhere. After gauge reaches normal operating temp all is fine except all the oil smpke from where it got all over exaust. I just would like to know how this egr vacuum control operates. Thanks