I have a '92 dodge shadow, I replaced the radiator a couple of months ago, but it didn't fix my problem. I can drive for about fifteen minutes, less when it's hotter out, then it will die. It doesn't die 100% though, I can hit the gas and the engine still sounds like it's running, but it doesn't register with any of the instruments. Then it won't start up for another ten-fifteen minutes. I don't really know what it could be, help is appreciated!