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Fuel Pump U is your resource for top quality information just as you’d expect from Airtex Fuel Delivery Systems whose design and manufacturing philosophy is to meet or exceed OE specifications.

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How Voltage Affects Fuel Pump Flow and Pressure

A common misconception is that the fuel pump is like an "On/Off" switch. If you can hear it running there must be power and all is fine. However, that is not the case. Voltage at the fuel pump has a direct effect on fuel flow and pressure. Even a two-volt drop can have a drastic effect on your vehicle's fuel system flow and pressure, causing drivability issues.

Replacing Clogged Fuel Filter

If the engine is experiencing a hard start or no-start condition, it is recommended you check if you have a clogged fuel filter before replacing the fuel pump. Symptoms of a clogged filter include the engine stalling or sputtering, idling issues, accelerating problems, exhaust fumes odor, carburetor or injector issues – all similar to a fuel pump failure but not!

Safety Topics: Working with the Fuel Delivery System

When working with the fuel system, some safety precautions should be obvious, such as smoking near an open fuel tank. The entire fuel system has vapors, which are more flammable than the fuel itself, thus care must be taken when working with all parts of the fuel delivery system.

ASE Certifications and Their Importance to the Automotive Technician

ASE certification and the badge on the uniform signify that you have been tested and certified by the National Institute for Automotive Service Excellence. It implies to the public that you are knowledgeable in every aspect of the system you are working on.

2000-03 Chevy S10 2.2l Tech Tip

If your vehicle is experiencing low or no fuel pressure after a fuel pump or fuel filter replacement, the cause could be a faulty fuel filter/regulator. To determine if it is the fuel pump or fuel filter/regulator, there are steps you should following.

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