What are the reasons for a car not starting when the engine is overheated?
1 Answers
Car engine not starting after overheating can be due to the following reasons: 1. Excessive carbon deposits: A large amount of carbon deposits can absorb gasoline, causing a short-term lean air-fuel mixture. 2. Fuel injector dripping: After turning off the engine, if the fuel injector does not seal properly, it can lead to cylinder soaking and an overly rich air-fuel mixture, making it difficult to start. 3. Insufficient fuel pressure: The main causes of insufficient fuel pressure are gasoline and fuel pressure valve malfunctions. 4. Faulty coolant temperature sensor and intake pressure sensor: These sensors sending incorrect signals can result in an overly rich or lean air-fuel mixture. 5. Faulty ignition coil: A malfunctioning ignition coil can cause resistance value changes, leading to excessively low secondary voltage and difficulty in starting.