My Cadillac CTS 2008 doesn’t start. Very strange behavior! You start the car, it spins, starts, runs and goes out again. It’s not on the battery, it’s brand new and charged. Gas pump runs too. It’s also not on the immobilizer. It’s also on the gas system. But it can’t be on it or? I had the problems when it was so cold. Then I closed the battery for an hour. When it got warmer it went again 2-3 weeks without problems. Now the cold is not possible again. But if it has something to do with the cold, I don’t know… at least it’s not on the battery! It’s new and charged and it can’t even be done with bridging. Does anyone still have an idea what I can check? I am grateful for every advice and tip! 🙂 Merci