When priming a primary fuel filter during a routine service, which of the following is best practice?

Question

Quizplus · Accepted Answer

Pouring fuel only into the filter inlet ports is considered best practice when priming a primary fuel filter. This method ensures that the filter is properly primed with fuel, reducing the risk of introducing air into the fuel system, which can cause the engine to run poorly or not start at all. Pressurizing fuel tanks with shop air can be dangerous and is not recommended. Cranking the engine for extended periods can wear the starter and battery, and is not an effective way to prime the filter. Pouring fuel into the outlet port is not recommended as it does not follow the natural flow of fuel through the system and can lead to improper priming.

When Priming a Primary Fuel Filter During a Routine Service