For days I've been so confused about this situation with my Mustang. One day I tried to start my car and it didn't start. I opened the hood and the first thing I did was look around to make sure everything was intact. I tried again, and nothing. For the hell of it, I pushed in the Ignition cable tighter into the ignition coil because why not. It wasn't loose, I was just doing things. Well it started. I was shocked. From then on the car ran normally. But then yesterday when I started my car, I let it idle for 5 minutes and then it cut out. I tried starting it and it ran for 1 second before it cut out again. I tried again and I pumped the gas and then it stayed running and idled normally and never cut out. Today I tried to start it and it didn't start. I tried the same thing again where I push in the ignition cable and It started. Im very confused on whats wrong. Is my Ignition coil going bad? Is my Ignition cable/ spark plug wires bad? I'd like to fix this so I'm not worried of breaking down on the road.