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Why does engine die when slowing down to turn corner?

It's not typical for an engine to die when slowing down to turn a corner. This suggests an issue with the vehicle, and there could be several possible causes:

1. Fuel System Issues:

* Fuel pump failure: A failing fuel pump might not be delivering enough fuel when the engine is under load (like when slowing down for a turn), causing the engine to stall.

* Clogged fuel filter: A clogged fuel filter restricts fuel flow, leading to reduced engine power and potentially stalling.

* Low fuel level: Running on a very low fuel level can sometimes cause the engine to starve for fuel and stall, especially when maneuvering.

2. Ignition System Issues:

* Spark plug problems: Worn or fouled spark plugs can cause misfires, leading to engine stalling.

* Ignition coil failure: A faulty ignition coil might not be generating enough spark to ignite the fuel properly, resulting in engine failure.

* Loose or corroded wiring: Issues in the ignition system wiring can disrupt the spark delivery, causing stalling.

3. Engine Management System Issues:

* Faulty sensors: Sensors like the oxygen sensor, mass airflow sensor, or throttle position sensor provide critical information to the engine control unit (ECU). A faulty sensor can lead to incorrect fuel/air mixture calculations and potentially stall the engine.

* ECU malfunction: A malfunctioning ECU can misinterpret sensor signals and cause the engine to shut down.

4. Vacuum System Issues:

* Vacuum leaks: A leak in the vacuum system can affect engine operation and cause stalling.

5. Other Possible Causes:

* Clutch issues: A slipping or damaged clutch can cause the engine to stall when changing gears.

* Transmission problems: Issues within the transmission can affect how power is delivered to the wheels, potentially leading to engine stalling.

* Low battery voltage: A weak battery can cause the engine to stall, especially under load.

Important Note: It's crucial to have the vehicle diagnosed by a qualified mechanic to determine the exact cause of the engine dying while turning. They can use diagnostic tools and tests to pinpoint the issue and recommend the appropriate repair.