It came with a clutch fan and that’s what you need. Flex fans are a joke as wont pull enough air. Very likely that is the problem.
The fab is always in play. There is no ram effect on these, the fan is needed to create a low pressure zone behind the radiator. This forum has had multiple threads from guys that thought they could throw electric fan on and make power and mileage only to have the same problems you are.
The fab is always in play. There is no ram effect on these, the fan is needed to create a low pressure zone behind the radiator. This forum has had multiple threads from guys that thought they could throw electric fan on and make power and mileage only to have the same problems you are.
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