What Causes Smoke from the Parking Heater?
2 Answers
The reasons for smoke from the parking heater: 1. Carbon deposits: Commonly found in the combustion chamber of the parking heater, the ignition performance of the igniter decreases, and there is a large amount of carbon buildup on the fuel injection device, causing excess fuel to not fully combust; 2. Excessive fuel injection: The fuel injector supplies too much fuel, or the fuel injection device is damaged, leading to incomplete combustion; 3. Poor fuel quality: Unlike the engine's precise control over the air-fuel mixture ratio, the parking heater system is less refined. If the fuel quality is too poor or contains excessive impurities, it will directly affect combustion; 4. Too much fuel: Incomplete combustion due to excessive fuel, adjust the fuel pump's injection volume.
I've seen plenty of cases where parking heaters emit smoke, most likely due to heating system malfunctions. For instance, the heater fan might be stuck or clogged with dust, preventing heat dissipation and causing the dust to burn and smoke. Alternatively, aging heating wires could short-circuit, producing smoke upon ignition, which in severe cases may lead to fires. Don't just panic—immediately turn off the heater and engine, exit the vehicle, and wait for the smoke to clear before inspecting whether the filter and fan are functioning properly. I recall during my last car repair, a completely blocked filter caused this issue, and replacing it solved the problem. Regularly clean your air conditioning system to prevent dust buildup, and have technicians check heating components for wear during maintenance to avoid major troubles. If there's heavy smoke, don't hesitate—call for a tow truck or professional repair. Safety first!
