What is your question?
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What is your question?
just put in OEM coolant &thermostat just before passing smog, I ended up taking out the T'stat completely but still running hot up to the red mark, the OBD tester is all OK result. no coolant leaks or wter pump leakand it doesnt eats or evaporate coolant, i am a moderate DIY selfer. cant think of anything else but maybe my water pump blade is gone, i have 237K miles on it bought with 195K 2 yrs ago. thanks
Thanks for the reply but my radiator is only no more than 18 mos old I bought a new one because soon after I bought the pick up truck the radiator cracked on the plastic cover on top near the cap and I kinda ruled out the radiator being clogged up since it is fairly new. Is there any other causes that will make this engine run hot even though the T'stat is out? it is driving me crazy!