How to repair a petrol engine
When your car is not starting or you are getting very little power, it’s time to do some troubleshooting. It will take some dedicated effort, but hopefully you have left this situation for now!
It would be helpful to know what makes up normal combustion in an internal combustion engine. In fact, you should already know most of these because they apply even when your vehicle doesn’t seem to want to start.
If you need help defining some terms, check out our article here. That way you’re more prepared if someone asks you about them while you're working on your car.
When something isn't functioning properly, there's usually a key part that keeps failing. In the case of a car that won't start, the fuel pump is one such component. It pumps liquid fuel into the engine where it can be burned.
So how does it work? An electrical current runs through the fuel as it moves from the tank to the engine. This current creates an electric field which pulls electrons off of the molecules of fuel. These electrified atoms then become ions with either a positive or negative charge depending on whether they had lots of electrons before being pulled away by the electric field.
The negatively charged ion goes somewhere else to spend its life, but the positively charged atom is leftover and needs to get rid of itself somehow. If it stays longer than needed, it could eventually lead to corrosion or explosion.
