I'd do a compression test to see what's up there. I'd do all 8 cylinders, also to check on the general condition of the engine.
Rebuilders put that doo-dad, usually on a block surface. It's some kind of a tell tale that melts if the engine is ever over heated.
I'd also run it, as is, to see how it does.
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1977 Black Trans Am 180 HP Auto, essentially base model T/A.
I'm the original owner, purchased May 7, 1977.
Shut it off
Shut it off
Buddy, I just shut your Prius down...
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