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Old 11-16-2009, 12:03 PM   #5
modelageek
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Location: Boston, MA
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Vehicle Year: 2004
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I think you want this motorcraft F8CZ-8575-AA and you should get a new oring gasket for the housing. I am not trying to ruin your fieldtrip but there are other things that could be causing your issue but a new tstat is never a bad idea. Also you should be able to tell if the tstat is open by feeling the upper rad hose
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