What Causes a Car to Fail to Start After Sitting Overnight?
1 Answers
Reasons why a car fails to start after sitting overnight: 1. First, it could be an electrical or electronic fault: The symptoms occur suddenly without any warning. Electrical faults include: blown fuse, open circuit in the high-voltage coil, open circuit in the low-voltage circuit, detached central ignition wire, leaking distributor rotor, or damaged spark plugs. Electronic faults mainly refer to the failure of the central computer control board. 2. Then, it could be a fuel system issue: Stalling caused by fuel system problems often comes with symptoms like engine weakness or the accelerator pedal feeling spongy. Possible fuel system faults include: fuel pump failure, blocked fuel line, clogged fuel filter, carburetor malfunction, or damaged injectors. Sometimes, the issue is simply an empty fuel tank that the owner is unaware of. Adding a few liters of gasoline can solve all the problems. 3. Lastly, it could be a mechanical fault: Common mechanical faults include: timing belt (chain) breakage, cylinder leakage with no compression, etc.