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#4 cop?

Old Mar 12, 2005 | 08:47 AM
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#4 cop?

what is the deal with the #4 cop crapping out in the 5.4 it just happened to my 01 f150 and i heard of many others going out at #4 anyone know why its always #4 is it a factory defect
 
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Old Mar 13, 2005 | 10:19 AM
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Sometimes it is due to antifreeze dripping from one of the heater hoses. I believe it is usually a heat issue due to #4 being buried under the cowl and near the firewall.
 
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