Wait for the engine to start. You will hear a noise. Begin to drive. If the step has several tasks, break the step into several steps or write a mini-procedure. Real-world experience indicates that users stop reading as soon as they encounter the action to be performed in a step.
Users usually stop reading as soon as they encounter the action and perform it.
Placing the conditional information before the action is one way to make sure readers see it. Write each item on the list as a self-contained task. A task is an action that can be performed physically or mentally. For tasks that users are expected to perform, write in the imperative mood. That is, begin with an action verb and tell readers what to do.