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How do you fix a P 0303 cylinder 3 misfire code on a 2004 Ford Mustang Mach 1?
Wiki User
∙ 13y ago
Probably the easiest thing to do is take the cylinder coil and swap it with another cylinder. Start the car and see if the misfire moves to the new cylinder, If it does the problem is either the coil or the plug boot. If it doesn't move, check the spark plug for breaks in the porcelin and plug gap. next check the connection to the cylinder coil. It is most likely the coil but they are a little pricey so it's worth it to take the time to troubleshoot a little. Good luck to you.
Wiki User
∙ 13y ago
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