- Clogged fuel filter or fuel injectors: Over time, dirt and debris can accumulate in the fuel filter or fuel injectors, restricting fuel flow and causing the engine to hesitate or stall upon acceleration.
- Faulty fuel pump: A failing fuel pump may not be able to provide adequate fuel pressure, resulting in a lack of power and stalling during acceleration.
Air intake system:
- Clogged air filter: A dirty or clogged air filter can restrict airflow to the engine, causing it to run lean and stall upon acceleration.
- Faulty mass air flow (MAF) sensor: The MAF sensor measures the amount of air entering the engine and adjusts the fuel mixture accordingly. A faulty MAF sensor can provide inaccurate readings, leading to an improper fuel mixture and stalling.
Ignition system:
- Faulty spark plugs or spark plug wires: Worn-out spark plugs or damaged spark plug wires can cause misfires, resulting in hesitation or stalling during acceleration.
- Faulty ignition coil: A faulty ignition coil may not be able to generate a strong enough spark to ignite the fuel mixture, causing the engine to stall.
Vacuum leaks:
- A vacuum leak can cause a lean fuel mixture and stalling, especially during acceleration when the engine needs more fuel.
Electrical issues:
- Faulty crankshaft position sensor (CKP): The CKP sensor provides information about the engine's position and timing to the engine control unit (ECU). A faulty CKP sensor can cause the ECU to miscalculate fuel injection and ignition timing, leading to stalling.
- Faulty throttle position sensor (TPS): The TPS sensor monitors the position of the throttle valve and sends a signal to the ECU to adjust the fuel mixture. A faulty TPS sensor can provide incorrect readings, causing the engine to run too lean or too rich and stall upon acceleration.
Transmission problems:
- Faulty transmission: A failing transmission may not be able to provide the necessary power to the wheels, causing the engine to stall during acceleration.
