What Causes the Car to Not Turn Off After Removing the Key?
2 Answers
If the car doesn't turn off after removing the key, for certain automatic transmission models, it might be because the gear is not in the P (Park) position. For manual transmission models, you should check the lock mechanism, as it might be stuck. Related explanations: 1. Other scenarios: Check if the car is out of fuel, as naturally, it won't start without fuel. If the car fails to start due to lack of fuel, simply find a way to refuel. 2. Precautions: Additionally, check if the battery is dead. Prolonged use of electrical devices can drain the battery, preventing the car from starting. This situation is more common in older cars that have been left unused for a long time.
You asked me why the engine keeps running after removing the key. With over ten years of repair experience, I've encountered many such cases. The most likely cause is a faulty ignition switch - the contacts at your key position might be stuck, keeping the current flowing. Alternatively, the starter relay could be jammed in the ON position, just like a stuck switch that won't turn off. Wiring issues in the car, such as short circuits to other components, can also maintain engine operation. ECU malfunctions are another common reason - those computer boards control too many components and once they act up, things won't stop. Another possibility is when the engine operation depends on failed auxiliary systems, like a stuck idle control valve causing slow rotation after key removal. Be careful as this problem leads to continuous fuel consumption, carbon buildup, and even fire hazards. Shut off the engine immediately and seek professional repair. Don't tamper with the circuitry yourself - it's far too complex.
