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Re: Electric fan thermostatic switch location; radiator or intake?
It should be in the head or manifold. It's a closed system, so at some point the temperature of the water should stabilize and be the same throughout (radiator/engine), but I personally care about how hot my engine is running, not how hot the radiator is. If you keep the engine happy the radiator will be fine, same can't be said the other way.
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