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Message: <blockquote data-quote="JC2008SportTrac" data-source="post: 1043505" data-attributes="member: 75816">I'm aware of the crappy plastic coolant thermostat housing.  Have a thermostat sitting in the garage, ready to replace it, as the coolant system is acting funky.  Not spitting anything anywhere, but the girlfriend was driving her, and she was overheating.  Wouldn't go full hot, and would go up, but come back down.  I've never had one come back down in temp once heated.  Temp issues are generally thermostat related, or water pump.  The fact that it goes back down to proper temp kinda tells me that the water pump is working.I found the radiator was about 2/3 gallon low.  I filled the radiator (not the over-flow), and have zero problems since.  I did NOT check the radiator at the time I bought the truck.  Now a good 3-400 miles, and zero cooling issues.The over-flow didn't seem to want to draw in coolant as needed before, but it drew it down about 1/3inch from perfect-full on the line in the last couple days.  So, I have a radiator issue, but not bad enough that it's visible or audible.  Does anyone know of a reliable radiator-leak fix (no, no boiled eggs, please). <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />Thanks!JC</blockquote>