I may have posted this problem before (within two -four months) but I cannot find it. When I start the car there is almost every time a loud grinding/rattling noise. It lasts for a few seconds most of the time then disappears. Sometimes it lasts while I drive a few hundred feet, then stops, I saw somewhere that it may be the starter itself, but sounds too loud . I Hate to just start changing things, money would run out too quickly! Would loose engine mounts make a sound like that? It doesn't seem to make the noise once moving a ways. I cannot start the car and listen outside at the same time, so need a but if advice.