What causes a car to crank but not stay started, and could fuel-related issues be responsible for this? Is it possible that this problem is covered under warranty?

If your car cranks but doesn't stay started, there are several possible reasons. Fuel-related issues could be responsible for this problem, such as a clogged fuel filter, a bad fuel pump, or a faulty fuel injector. Other potential causes could include a faulty ignition switch, a bad starter, or a malfunctioning engine control module (ECM). To diagnose the root cause of the problem, it's important to have your car inspected by a professional mechanic. They can run diagnostic tests to determine the cause of the issue and recommend the appropriate repairs. Whether or not the problem is covered under warranty will depend on the specific terms of your warranty. It's important to review your warranty documentation or contact your dealership to find out if the repairs will be covered. Solutions to this issue may include replacing the fuel filter, fuel pump, or fuel injector, repairing or replacing the ignition switch or starter, or repairing or replacing the engine control module (ECM).