Suppose an author writes a story about an ugly troll who lives under a bridge and gives gifts to those who show kindness instead of fear toward him

answer:

A drop in pressure can be caused by a faulty regulator or a weak pump, or by a clogged filter or injectors. The ignition system provides a spark to ignite the fuel in the engine. ... Worn-out spark plugs will have a difficult time igniting the fuel in the engine, which will result in longer cranking time

Explanation:

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