Does anyone have any specific ideas on what would cause my engine to switch off whilst driving and then not able to restart for a few hours. Basically I think it may be a fuel injection problem but I am not sure. What happens is I will be cruising along and wihout warning the engine will just switch off and then I won't be able to start it again. I'll try and start it a few hours later and sometimes it starts and sometimes it doesn't. Its not the battery as I tested it and all the electrics work. Has anyone experienced this before? I will take it to a mechanic but would like to atleast steer them in the right direction so I don't have to take out a million dollar loan to pay for unecessary repairs.