Which of the following would not cause the fuel pressure to drop to zero immediately after engine shut down?

Question

Quizplus · Accepted Answer

A leaking pressure regulator vacuum line would not cause the fuel pressure to drop to zero immediately after engine shutdown. It might affect the fuel pressure regulation when the engine is running, but it wouldn't cause an immediate drop to zero upon shutdown. The other options directly involve components that hold or regulate fuel pressure, and leaks in these components could lead to a loss of pressure.

Which of the Following Would Not Cause the Fuel Pressure