Billy Estrella

2009 Dodge Journey AWD with a 3.5 engine. the car starts just fine and I can drive it all around, but when I go shopping, and park the car and turn off the engine, when I come back, the car won't start. sometimes when I slam the driver door really hard, I can start it, sometimes it doesn't. It must be something electrical right? Whenever the engine shuts off for a bit, it doesn't start back up.