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Discussion Starter #1
my 96 3.8 keep shredding the oring that goes around the thermostat and im not sure why. i want to blame the problem on cheap felpro part. anyone seen this before or know whats going on? its the second one in less than a year and now i think its clogging coolant passages in the head gaskets. its a motorcraft t-stat from ford dealer but the edges did seem a bit sharp when i inspected it. any idea please.
 

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I don't remember the edges being sharp on the 180* thermostat I had for my old V6. I would get a new one if you think the thermostat itself keeps destroying the o-ring. Rockauto has them cheap and I never had a problem with the one I got from them.
 

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352 Posts
prob not because of it being cheap felpro Ive used felpro for all my gaskets and have absolutely no problems
 
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