What to Do When the Car Suddenly Stalls and Won't Start?
1 Answers
There are four main reasons why a car might suddenly stall and fail to start: throttle failure, fuel pump not supplying fuel, timing belt breakage, and coolant temperature sensor failure. Below are detailed explanations: 1. Throttle failure: Excessive carbon buildup in the idle control motor can cause the car to stall when coasting. When the throttle position sensor malfunctions, the data received by the sensor becomes inaccurate, generally leading to excessively high engine idle speed and potentially causing the engine to stall. 2. Fuel pump not supplying fuel: If the fuel pump fails, it will have trouble supplying fuel. Without sufficient fuel, the engine will naturally stall. 3. Timing belt breakage: After the timing belt breaks, the car may suddenly stall while driving. Upon attempting to restart, the engine may rev high but fail to compress. This issue typically occurs in older vehicles rather than new ones. 4. Coolant temperature sensor failure: Inaccurate data from the coolant temperature sensor can cause the car to stall after warming up and fail to restart. In such cases, it's necessary to visit a repair shop or dealership to check the data with a diagnostic tool. If a problem is detected, the coolant temperature sensor should be replaced.
