Fuel System Archives - Page 7 of 12 - UnderhoodService
Diagnostic Dilemmas: Multiple Failure Diagnostics On High Mileage Engines

Gary Goms explains that in tough economic times, a driver has no way of knowing how many maintenance-based and component-based failures will accumulate before he or she can afford to have a technician investigate the problem once a Check Engine light comes on.

DENSO Sales California Introduces New Fuel Pump Catalog

DENSO Sales California, Inc. has introduced a new First Time Fit fuel pump catalog for the automotive aftermarket. The new 2013 fuel pump catalog, part number FP-CAT-1112 now includes fuel pumps, fuel pump kits and modules for more than 16,600 domestic and foreign applications, including 175 new applications. The catalog also includes fuel senders for popular Toyota applications.

Maximizing Current Ramping Techniques In The Shop

Although modern on-board diagnostic systems are becoming far more comprehensive than in years past, it’s still important to know how to use a lab scope and inductive current probe to analyze the amperage flow through the primary ignition and fuel pump circuits.

Memory Lane: Nuts, Bolts And Screws – Finishing A Chevy Restoration Project

Gary Goms discusses the mechanical challenges of restoring a truck that he began maintaining when he went to work in a gas station – back in 1957!

Fuel Pump Diagnostics – Using Voltage Drops and Current Draw

Fuel pumps and voltage drops are never a good combination – at least the wrong kind of voltage drops. Good voltage drops occur with fuel pumps that are given multiple speeds with a module that is connected to a computer with a dedicated signal wire that tells the module to go to a lower or higher speed.

Directions: Are You Ready for the Most Tested Fuel in History?

In mid-August, the U.S. Court of Appeals for the District of Columbia Circuit dismissed a lawsuit that challenged the Environmental Protection Agency’s (EPA) authority to grant a partial waiver for 15% ethanol (E15) content in gasoline for 2001 and newer model year cars and light trucks.

Veyance Technologies Expands Coverage with 104 New Part Numbers in Automotive Aftermarket and Heavy-Duty Lines

Veyance Technologies, manufacturer of Goodyear Engineered Products, has announced the release of 104 new part numbers to its automotive aftermarket and heavy-duty product lines for the second quarter of 2012.

Delphi New Fuel Pump Module Assemblies and Hanger Pump Cover More than 
800,000 Vehicles on the Road Today

Delphi announces the addition of 10 new fuel pump module assemblies and one new hanger pump assembly to its comprehensive fuel pump product portfolio. The new fuel pump module assemblies cover Ford and GM applications for more than 680,000 cars and trucks in the United States and Canada, including the popular 2007-2008 Chevrolet Malibu.

Tech Tip: Audi Has MIL On with Multiple Low Fuel Pressure DTCs

Due to fuel intrusion into the low-pressure system fuel pressure sensor (G410), a false signal may be sent to the controller, resulting in a reading that is out of tolerance.

Returning Engine Power Through Fuel Injection Service

Over time, fuel injectors will become flow restricted from both the deposits that the gasoline leaves in them as it flows through the injectors and the carbon deposits that form on the head of the injectors, causing engine driveability issues

Tech Talk – Engine Innovations to Reach Government Fuel Standards

In recent years, the primary driving force behind engine innovation has been the never-ending quest for better fuel economy with little or no sacrifice in performance. Government regulations and rising fuel prices are forcing automakers to develop new technologies and powertrains that squeeze more power out of every drop of fuel while producing less pollution and greenhouse gas (carbon dioxide) emissions.

AIRTEX Launches New Online Resource: FuelPumpU.com

AIRTEX Fuel Delivery Systems has launched a new website designed to provide the latest advances in diagnostic and procedural information and technical support for fuel pump replacement.