Fuel Systems

Master the complex network of Automotive Fuel Systems with our expert diagnostic and repair guides. This system is the lifeblood of your engine, responsible for delivering the precise amount of gasoline or diesel required for efficient combustion. Our resources cover everything from identifying failing fuel pumps and clogged fuel filters to troubleshooting modern electronic fuel injection (EFI) and high-pressure direct injection systems. Learn how to perform fuel pressure tests, clean dirty fuel injectors, and diagnose the lean or rich conditions that trigger “Check Engine” lights and rob your engine of its power and fuel economy.

Electric Fuel Pumps – How Do They Work – How Can They Fail

06/23/2024

So, electric fuel pumps are fairly simple, but rely on many other systems, to function properly. Above all, electric fuel pumps are responsible, for delivering pressurized fuel, from the fuel tank to the engine. Consequently, […]

Idle Air Control Valve (IAC) Mounted on Engine

Idle Air Control Valve (IAC), Function, Failure Symptoms – Testing

03/31/2024

SO, THE IDLE AIR CONTROL VALVE, IS RESPONSIBLE FOR MANAGING THE ENGINES IDLE SPEED. And, that’s what makes the idle air control valve, a major management component of the engine. Because, it decreases or increases […]

Gas Getting Into Oil – What Can Cause This To Happen, And Why

02/22/2024

When changing your oil, one of the worst things to notice, is the smell of gas in the oil. Because, it means that gas, is somehow making its way into your engine’s oil. However, it […]

Mass Air Flow Sensor (MAF) - Function - Common Failure Signs

Mass Air Flow Sensor (MAF): Measuring Volume, Density, Temperature

02/20/2024

So, almost all newer vehicles on the road today, use a mass air flow sensor. The mass air flow sensor, measures the volume and density, of the air entering the engine. In addition, it also […]

Fuel Pump Related No Start Problems – What Should You Check

02/04/2024

The fuel pump runs continuously while your engine is running, delivering high-pressure fuel, to the fuel rail and injectors. The fuel pump keeps cool by staying submerged in fuel, or else it would overheat. So, […]

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