Why won't a 1992 Pontiac Grand Am start after washing the engine?
Did you cover the coil pack before washing? The answer is that in the washing process you got water into one or more parts of the electrical system, in effect grounding [or shorting] a part of the system, rendering it non-functional ["broken"]. "Usually," [though not always] this problem corrects itself ONCE the system has had time to TOTALLY dry out.
Nobody can tell you what's wrong with your car without any information. Three things result in an engine firing---fuel,compression and spark. If those three things are present the engine should fire. It may not keep running very long if it is an old, worn engine. In which case it might be close to seizing up.
I have a 95 Pontiac grand am and the engine will turn over but wont start it sounds like its out of time but it is mechanically driven?
Could be your starter. See this write up I created when I replaced mine. http://hubpages.com/hub/Starter-Removal-1999-Pontiac-Grand-Prix.?Now bare in mind. It could be several things, from the starter, to the fuse, to the battery connections, as well as the neutral safety switch. What are the symptom's