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I have a 2004 Mustang V6 3.9L. I have replaced cold air intake with an aftermarket one from BBK and also replace idle control valve. i believe the hoses are fine. I'm curious to why the engine shakes while idling and what could be problems causing the shake?

Vehicle: 2004,Mustang, Base V6, 3.9L
asked by (101 points)

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