Question about 1990 Chevrolet C2500
This is a common misconception with cooling systems.
Removing the thermostat will cause overheating, due to the coolant not having time to be cooled down in the radiator. That is why if it is left idling, it won't overheat (low RPM - slow coolant flow).
The thermostat acts as a type of "restrictor" and slows down the coolant flow, giving the radiator time to do it's job.
Posted on Jun 22, 2008
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Posted on Jan 02, 2017
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