Engine Performance problem
2002 Pontiac Grand Am 4 cyl Front Wheel Drive Automatic 95000 miles
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This started with the coil going out and taking the ignition control module with it. After replacing those, it ran fine for a couple of days, then started missing on one cylinder. I pulled the coil and found coolant in the spark plug well. Since the engine was still warm, I was able to observe the coolant leaking into the well about 1/4 inch above the threads where the plug screws in. I dried everything off and the car ran fine for a couple of days. I don't want to have to pull the coil every 2 or 3 days. What is the problem and how do I fix it?