An air leak in the fuel line of a car means air is getting into the system when there should be a vacuum. This disrupts the air-to-fuel ratio and may result in symptoms like hissing, rough idling or ignition and fuel problems.
An air leak is most evident when the car is idling, because that is when extra air entering the system can make the most difference. At higher engine speed, air intake rises and extra air is less noticeable, according to the AA1Car website. Idling may be rough or fast.
Whether an engine has fuel injectors or a carburetor, there may also be stalling or misfiring. Common locations of leaks include the gaskets in the intake manifold and the O-rings in the injectors.
Methods of detecting air leaks include visual inspection, using an electronic vacuum leak detector or exhaust analyzer. Sometimes, it's a simple manner of tightening bolts on the intake manifold or carburetor, but if hoses and parts are worn, they should be replaced.
How to Remove Air From Fuel Lines in a Fuel Injected Engine
Along with the joy and freedom of owning your own vehicle come the difficulties of repairs and maintenance. If you want to...
Clogged Fuel Line Symptoms
Clogged Fuel Line Symptoms. A fuel line is a hose placed in the engine of an automobile or other vehicle. It controls...
How to Fix Leaking Fuel Lines
Keeping the fuel lines in working order on your car or vehicle is important. A leaking fuel line can expose gasoline or...
Natural Gas Leak Symptoms
Natural Gas Leak Symptoms. For a majority of Americans, natural gas is a clean, efficient source of heat. It is generally safe,...
How to Find a Fuel Leak
One of the most critical issues you can have with your automobile is a fuel leak. In addition to the irreversible damage...
Symptoms of a Fuel Line Freeze Up
In the winter, your car's fuel line can freeze up very easily. This usually happens when the gas level is below half...
Why Does My Ford Taurus Idle Rough?
Comments. You May Also Like. How to Change the Idle Air Control on a 2003 Ford Taurus. The idle air control, or...
How to Bleed Air in a Gas Line
Vehicles and tools powered by gas that have been stored for awhile must have their fuel lines bled so any air is...
Water Leak Detection Methods
Water Leak Detection Methods. A water leak in a pipeline system that serves an entire building for example, besides representing a financial...