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!
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.
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.
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.
Fuel Pump Diagnostics Using Scan Tools
The most common diagnostic procedures for fuel pumps in the past were analog and hands on. Most fuel pump-related problems could be solved with a pressure gauge and voltmeter. Today, the scan tool is the most important tool when diagnosing a fuel supply problem.
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
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.
New Fuel Pump Assembly Packaging from Spectra Premium
Spectra Premium has unveiled new fuel pump assembly packaging, which the company says features more rigid internal protection and offers up to 32 percent in shelf space savings.
Diagnostic Solutions: Testing Fuel Delivery Systems – Checking the Basics First Can Facilitate Diagnostic Strategy
Vehicle fuel delivery technology has evolved to include conventional, pulse-modulated and direct fuel injection systems, with each having a specific set of components and testing issues. Gary Goms explains how to avoid some of the most common mistakes in diagnosing fuel delivery systems.
Tech Tip: Nissan Fuel Gauge Issues and/or DTC P0461, P0462 or P0463
If you confirm the fuel gauge is erratic, inaccurate or inoperative and/or the MIL is on with DTC P0461, P0462 or P0463 stored in self-diagnosis, replace the fuel lever sensor unit.