Car Information:
Mecury Milan
Year: 2007
Engine Size: 6 cylinder
Trans: Automatic

Issue / Question:
Recently, it started to produce a fire cracker like popping noise under the hood after driving a few miles.

It does not make this noise when the engine is stopped and in idle.

Answer:
Your welcome to swing by the shop and let us listen to it, I suspect a bearing in an accessory maybe locking up momentarily causing the noise.

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