how difficult is a rebuild of the vaccum pump? also how expensive? i will replace the modulator, but the doors might have leaks? do i have to remove the panelling on my doors? is there a line that i could just plug to get rid of the vaccume to the locks totally or will they just not function at all then. the vaccum pump is situated on the front of the engine right? could you explain what it looks like and the best way to get it out? sorry for all the qusetions that you've probably heard a millilon times before but i'm sooooo nooob. thank you once again.