Car 1: 1991 Legend
Car 2: 1998 Civic EX
Car 3: 95 ZX-7
iTrader Score: 63 reviews
It depends on how quickly it goes to 'H'. First of course is to make sure you filled the cooling system and bled it correctly. Assuming the temp gage goes there immediately then you have a bad temp sending unit (next to the throttle body under the fuel rail cover) or problem with its wire.
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