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Q: engine miss firing on 2000 Lincoln Town Car

my lincoln town car when i first start it up it will run smooth as silk for about 10 to 15 minutes but after that it will start to miss fires. then i let the engine get cold again and it will run smooth again until about 10 to 15 mintues
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Any misfire concern should start with checking plugs and coil boots. Plugs should be replaced every 60,000 miles at least as a proactive measure, and the coil boots should be replaced at the same time.

If you continue to have a misfire problem, a compression test would be a good idea, followed by a leak down test if there is cylinder variance. This will determine if you maybe have a cylinder head valve problem too.
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