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Old 01-27-2013, 07:30 PM   #8
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Join Date: Sep 2012
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Location: willis, TX
What I Drive: 2002 yellow focus zx3

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I agree with whynot. A nice little tip is to make sure they will stay tight is snug them in when the head is warm. As the head cools it will clench on the threads, and hold them in nicely. The threads on your head might be loose which is common on higher mileage cars.
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