Reasons Why the Car Won't Start After Stalling with AC On
2 Answers
Reasons why the car won't start after stalling with AC on: 1. It is mainly caused by excessive carbon deposits on the idle speed motor, intake tract, intake valve, and combustion chamber. 2. Excessive carbon deposits and dirt in the intake tract can change the cross-sectional area of the air passage, resulting in an overly rich or lean air-fuel mixture. This leads to abnormal combustion or engine shaking after starting, or even failure to start. Alternatively, issues with the fuel injector, such as leakage or excessive carbon buildup, can cause a lean mixture during startup, making it difficult to start. 3. Additionally, if the carbon canister or carbon canister solenoid valve malfunctions, it can also lead to difficulty in starting.
I've experienced this issue before - the car won't start after shutting down with AC running. It's usually caused by a drained battery. When the AC continues operating after engine shutdown, it consumes battery power. This becomes particularly problematic if the battery is old or the charging system has issues, leading to insufficient power to restart the engine. I recommend first checking the battery voltage - if it's below 12 volts, the battery may need recharging or replacement. Additionally, if the alternator isn't functioning properly, the battery won't receive charge when the engine is off, making restarting even more difficult. Develop the habit of turning off the AC before shutting down the engine to avoid unnecessary power drain. Regular checks of battery health and charging system can prevent such issues. If this happens frequently, it's best to have a professional shop test the starter or relays to ensure everything works properly.
