Eli5: Why does pressing the accelerator helps when the car engine is not turning on?
In: 0
Depending on the vehicle, there may not be enough fuel. Pressing the gas is much like priming and engine that won’t start. You force a bit more fuel into the motor in hopes a spark will cause ignition.
If the motor is getting more fuel and some of the cylinders are firing but it won’t turn over, the extra fuel in the cylinder helps warm the vehicle up further. Atomizing fuel and causing an easier reaction.
Anymore, as soon as you turn the ignition to accessory…on but not started, the car will prime the motor with the correct amount of fuel. Some prime the motor when you unlock the car.
For the most part, fuel injection and computer software of vehicles nowadays prevent you from adding too much fuel. Typically it’s a bad spark plug, fuel filter, or plug(connects to spark plug and ups the voltage to get a good spark).
In short, it dumps more fuel in hopes of an easier ignition, too much fuel will flood the motor and a spark will not be made.
Latest Answers