I have an engine problem.
While the information you gave is not enough for me to determine the cause of your problem, I can give you some advice on how to explain the problem to a mechanic, such as one from YourMechanic, that might be checking it for you. Using descriptive words like rattle, squeaking, grunting, squawking, moaning, etc., and describing when you observe the problems, can really help point us in a good direction.
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