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I used a small dab of permatex or similar sealant on flange of t-stat to hold it in place. Make sure surfaces are clean.

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โˆ™ 2008-05-11 01:51:07
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Q: How do you keep the thermostat in the proper mounting position when replacing it on a 1993 4.9L F150 since it won't stop leaking?
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