Starting Issue....but not every time

Hey, I'm Dusty, one of the auto experts at RepairPal's Car Genius team. I'm here to help! Your 2012 Corolla seems to have a starting issue that is pretty interesting. The fact that slamming the hood temporarily fixes the problem suggests a loose connection somewhere in the electrical system. Here are some steps to address this issue: 1. Test the battery to ensure it holds a charge properly, especially if it's old. 2. Check that the battery terminals are clean, tight, and free of corrosion, as loose or corroded terminals can cause intermittent power loss. 3. Inspect the battery cables for wear, damage, or looseness. 4. Ensure that the grounding points, main fuse, and any fusible links are intact and securely connected. 5. Double-check the connections to the starter and alternator since you recently replaced these parts. Inadequately secured connections can cause issues. 6. Keep in mind that a weak or failing battery can still cause problems, even after replacing the alternator and starter. If you've followed these steps and the issue persists, consider consulting a professional technician. A RepairPal Certified shop or another trusted professional can perform a thorough inspection to identify any hidden issues and ensure all connections and components are in good working order. Getting a professional diagnosis can save you time and ensure the root cause is addressed, helping your Corolla start reliably every time. If you have any other questions or need help locating a RepairPal Certified shop, feel free to give us a call! 877-913-1554