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Tips to Diagnose Fuel Pump Leaks in Your Porsche

Tips to Diagnose Fuel Pump Leaks in Your Porsche

Porsche makes some of the world’s best luxury sports cars, but you already know that if you own one. Nothing beats the feeling of cruising down a winding highway in one of these amazing cars. Imagine your surprise, then, if one day you are unable to start your Porsche. This would make anyone upset no matter what car you drive, but with these vehicles, it is especially disappointing. When a car doesn’t start, there are a number of potential causes, one of which being a fuel pump failure. The good news is that fuel pumps usually don’t fail out of the blue. Most of the time, it starts with a leak. In this article, we will share tips on how to diagnose fuel pump leaks in your Porsche. Let’s get started.

The Function of a Fuel Pump

The function of the fuel pump is self explanatory: it pumps fuel. More specifically, this vital component of your vehicle’s combustion system delivers fuel to the engine intake chamber, where it is ignited and used for power to the engine. Although Porsches offer an incredible experience on the road, owners of these cars do encounter fuel pump malfunctions from time to time.

Fuel pump leaks are a serious problem for a number of reasons. Not only do they hinder the performance of your Porsche, but they are also dangerous because leaking fuel can pool under your vehicle, posing a fire hazard. You could also run out of gas at any time and wind up stranded in the middle of nowhere.

Common Causes of Fuel Pump Leaks

There are a number of potential causes for fuel pump leaks in your Porsche. It is important to understand that the fuel pump on your vehicle has multiple internal parts working in tandem to accomplish its purpose. That said, if any of these parts fail, then the pump itself will allow fuel to escape through the “weep hole” in the bottom of it, which is an indication to the driver and the technician that there is a problem somewhere inside the assembly.

In addition to the internal parts, a fuel pump has hoses and tubes attached to it that can rupture or unseal, allowing fuel to leak out of the pump. If the fuel level gets too low, the fuel pump will be overworked, and it could break completely. This would mean that you couldn’t start your car at all.

As with any potential issues with your vehicle, the best way to be sure about the cause is to get a diagnosis from a qualified professional technician. This is the best way to rule out potential causes other than the one that is actually contributing to your problem. Be sure to follow a regular schedule of maintenance for your Porsche with a certified mechanic.

Signs and Symptoms

Since leaking fuel can be such a serious hazard, be sure to keep an eye out for these potential signs of a fuel pump leak. Catching them early can help you to avoid dangerous situations, like gas fires or running out of fuel.

Noticeable Leakage

The most obvious possible sign of a leaking fuel pump is gas dripping from and pooling under the vehicle. Be sure to take your Porsche right into a service shop if you see this.

Engine Sputtering

Since the fuel pump delivers gas to the engine intake, if it is malfunctioning the engine may “cough” and sputter because of the lack of fuel and potentially stall while you are driving down the road or coming to a red light.


You might think that coolant is the only thing that maintains the engine’s running temperature, but in fact, oil and fuel also play a part in this vital process.

Power Loss

If you’re accelerating with decreased torque or having trouble climbing up inclines, it could be because the engine is not being supplied with sufficient fuel to power it.

Low Gas Mileage

Finally, pay attention to the mileage meter on your dashboard to notice any significant changes in gas mileage on the road. Decreased gas mileage is one of the earliest indications that there is a problem with the combustion system of your Porsche, possibly the fuel pump.

Complete Automotive Systems Fixes Fuel Leaks

Porsche Mechanic Checking Engine Oil LevelAt Complete Automotive Systems, we have a team of trained Porsche technicians that offer unrivaled expertise in maintaining and repairing these fantastic vehicles. Our auto center attracts drivers throughout Beverly Hills, Culver City, Brentwood, and Santa Monica, CA. We service the oldest to the newest generations of Porsche. To inquire about our five-star reviewed service, call us today at (310)-839-1100.

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