Exam 29: Fuel Delivery Systems

All modern vehicles use a threaded, removable gas cap.

How can an electric fuel pump be safe when there is a great potential for sparks between an electric motor's armature and brushes?

When a vehicle will not start because of no fuel delivery, the first check should be the ____________________.

Technician A says low fuel pressure can be caused by a restricted fuel filter. Technician B says low fuel pressure can be caused by a kinked fuel return line. Who is correct?

A loose gas cap cannot cause the MIL light to turn on.

The fuel strainer serves as a filter, stopping any rust or dirt that may be in the fuel from entering into the fuel pump.

In Chrysler EFI systems, the ASD relay (automatic shutdown)controls the power to the ______.

Which of the following problems could NOT cause the fuel pressure to drops off quickly after the engine and ignition are turned off.

Why are most fuel pumps in modern vehicles located inside the fuel tank?

A fuel system that runs at 35 to 50 psi should draw around _____ amps of current.

A(n)____________________ switch shuts off the fuel pump if the vehicle in involved in a collision or rolls over.

Some vehicles have two fuel pumps: an in-tank pump and a second pump mounted under the vehicle.

A vehicle with a leaking nylon fuel supply line is being repaired. Technician A says replace the nylon fuel line with a section of double-wall steel fuel line, using short lengths of rubber fuel hose and screw clamps to connect to the filter and fuel tank to the steel line. Technician B says use an OEM nylon fuel line assembly. Who is correct?

A high fuel pressure reading is typically caused by a faulty fuel ______.