If you canât feel any vacuum pressure and the engine idle doesnât change, thereâs a clog somewhere in the system, as normally a leak in the EGR system, with exhaust gas still recirculating, will cause the engine to run rough.
I have a wish for world peace and the truth. I would like to see a society that will bring happiness to all life forms. Of course, to the Nazis, I appear a rebel, but to the rebels, I appear like a normal person from Venus. Nina Hagen.
However, you must keep in mind, that even though they are great to use, the metaphor youâre using must be universal, or otherwise it simply wonât fit-in with peopleâs mental models of reality. Here are some examples of metaphors: 1  Ideas are mushrooms that expand and multiply quickly. 2  Ideas have wings. 3  Asking questions is priming the pump of better understanding. 4  Thoughts are the seeds of creation. 5  A positive attitude is a lighthouse for the hopeful.