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Hey all so I had multiple cylinders misfiring a week ago. I found the vacuum hose cracked that runs from the side of intake manifold to the fuel pressure regulator. I replaced it and after driving it about 10 miles the MIL turned off and the car ran fine. A week passed with car running perfectly fine then today MIL comes on and car starts misfiring again. Should I just change coil pack? Spark plugs were done about 10,000 miles ago if that.