Robinhood 1977 dodge 440 heats up on freeway
The longer you run it on the freeway the more it keeps gradually heating up. If you get off the fwy and slow down its ok. Or going down a hill cools it off quick. I have been through the cooling syste...
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I'm with NormK on this one. Cooling system gradually loosing ground with the normal heat generated by the engine. Partially restricted radiator probably.
