Author Question: Which item is NOT important to know before starting the diagnosis of an engine performance problem? (Read 72 times)

Cooldude101 · **on:** Aug 13, 2021

Question 1

Which diagnostic step is the most important aspect of diagnosis?
◦ Visual inspection
◦ Verify the problem
◦ Retrieve the trouble codes
◦ Check the service bulletins

Question 2

Which item is NOT important to know before starting the diagnosis of an engine performance problem?
◦ List of previous repairs
◦ Brand of engine oil used
◦ Type of gasoline used
◦ The temperature of the engine when the problem occurs