* Throttle Position Sensor (TPS): This sensor tells the computer how much you're pressing the gas pedal. A faulty TPS can cause erratic behavior, including stalling when you accelerate. It's a common culprit for this type of problem.
* Mass Air Flow Sensor (MAF): This sensor measures the amount of air entering the engine. A dirty or faulty MAF sensor can provide incorrect information to the computer, leading to poor fuel mixture and stalling.
* Fuel Pump or Fuel Filter: A weak fuel pump may not be able to supply enough fuel when you accelerate. A clogged fuel filter has a similar effect. You'll hear a humming sound from the fuel pump if you turn the ignition on (before cranking) – a weak pump might be quieter or not run at all.
* Ignition System: Issues with the ignition coil, spark plug wires, or distributor (if equipped) can cause misfires, especially under load (acceleration).
* Vacuum Leaks: A leak in the vacuum system can disrupt the engine's operation and cause stalling.
* Transmission Issues (less likely): While less probable, a problem with the transmission could also cause stalling under acceleration, but the description points more strongly toward a fuel or ignition problem.
What you should NOT do:
* Continue driving it: Driving the car in this condition could cause further damage.
What you SHOULD do:
* Get it checked by a mechanic: This is the safest and most efficient way to diagnose the problem. Trying to fix it yourself without experience could lead to further damage or injury.
* Mention the gradual worsening of the problem: This is crucial information for the mechanic.
A mechanic will likely perform diagnostics to pinpoint the exact cause. They may use a scan tool to read trouble codes from the car's computer, which can provide valuable clues. Don't try to diagnose this yourself unless you have significant automotive experience, as incorrect repairs could be costly.
