Tools for Removing the Fuel Line in a Saab

Written by dan boone
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Tools for Removing the Fuel Line in a Saab
Fuel lines are the life arteries of the car. (fuel valve image by Luis Bras from

Fuel lines are the life arteries of your car. Saabs have two fuel lines -- one marked as a white hose and the other a black hose, which transports fuel from the gas tank. These lines are made of rubber, and when exposed to extreme temperatures, they can crack and develop leaks. The car's frame can also rub against a fuel line, which is the most common cause of fuel line corruption. The best way to fix a fuel line leak is to replace the hose. Removing the fuel line in a Saab requires the correct tools.

Special Allen wrench

The fuel pressure within the vehicle's fuel system must be lessened before work on a fuel line can begin. Find the fuel cut-off switch, and use an Allen wrench clockwise to loosen the bolt. The pumps will not be re-pressurised, and you can begin work on your vehicle.

A diesel filter wrench is a large wrench which has a head round enough to remove the cap from the pressure relief valve on the fuel rail. A special H4516 Allen wrench is needed to loosen the fuel line from its connection at the fuel rail. A fuel rail wrench may be necessary if you can't get it loose. Heat application may also be necessary if problems persist.

Socket Wrench

The fuel line's electrical connection must be removed for your safety before removing the fuel line. A socket wrench is the best way to access the fuse and relay box, which is behind the battery. Rotate the wrench clockwise and disconnect.


Use a simple flat-tip screwdriver to loosen the mounting clamps that hold the fuel line in place.

Retaining Ring Remover

The retaining ring is notoriously difficult to remove and might need a special tool such as a fuel delivery module retaining ring remover. Remove the fuel line with a vacuum hose and fuel line removal tool; it will allow you to clamp one end of the hose while you do it. This tool is also known as a " retaining ring remover."

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