A Volkswagen Jetta Fuel Pump's Most Common Problems
The fuel's importance to a car is a given. No matter how new or how charged your car battery is, the car simply won't run (except if it's an electric car, in which case it will). Fuel is the lifeblood of a car and the fuel system its circulatory system. So, if one part of this system, like the fuel pump, fails, you might as well leave your car by the curb and take a hike. Don't let this happen to you in the middle of the night. Check your fuel pump for the following common problems:
If your car uses a fuel injection system, it is sensitive to pressure. Each car has a different fuel pressure level, but on average, it stays at around 30 to 80 pounds per square inch of fuel. If you go over or under those numbers even for a bit, your car's fuel pump may fail. You should consider following the intended pressure for your vehicle.
Fuel pump relay fail
Sometimes a fuel pump relay may fail, which could cause your fuel pump to fail. This usually happens when the fuel pump fails to detect enough voltage needed to run itself. You should check your fuel pump relay if this happens. It should deliver a quart of fuel every 30 seconds, so if your fuel pump doesn't give out that much, you should consider changing your fuel pump relay.
If your fuel pump fails to work properly, something could be wrong with your vehicle's electric connections. A fuel pump is connected to the electrical system of a car and a specific amount of voltage is needed for it to run properly. If other parts are fine but the fuel pump still won't run, you should consider checking the connections. Make sure that none of the wiring causes shorts or the connections aren't corroded. If they are, you should replace them as soon as possible.
Other things you should consider
Before taking a look at your vehicle, you should consider taking a look at the manual. There are a lot of things that you could learn from it such as specifics about the wiring or the right parts to use as replacement.