Practice question

A vehicle has a hard-start condition. A fuel pressure gauge shows that system pressure drops to zero immediately after the engine is turned off. What is the most likely cause?

  1. A completely restricted fuel filter element
  2. A leaking fuel injector or a failed check valve inside the in-tank fuel pump assembly
  3. A malfunctioning fuel tank vapor pressure sensor
  4. The fuel pump relay contacts are stuck closed

Answer: B — A leaking fuel injector or a failed check valve inside the in-tank fuel pump assembly

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Practice more: SKM Motor Vehicle Mechanic Level 3 Practice Questions - SKM Motor Vehicle Mechanic Level 3 (Malaysia) Exam →