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Hello and welcome!My name isCustomerand I can assist you with your question.
Does the misfire occur all of the time or just intermittantly? Does it happen at idle or under a load?
Have you checked engine vacuum?
Have you checked compression on number 1 cylinder?
Ok, this is because of a burned or sticky valve on number 1 cylinder. YES, it will do this intermittantly and YES, it will show up on a vacuum test using a hand held vacuum gauge. YES, the cylinder head or both heads will need to be removed and sent out to a machine shop for repair. That is your fix.
Hello! It'sCustomerfrom just answer.
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