How do you get the fan off of the water pump on a 99 Chevy van?

To remove the fan from the water pump on a 1999 Chevy van, first, ensure the engine is off and cool. Disconnect the negative battery terminal, then use a wrench to hold the water pump pulley in place while you loosen the fan clutch bolts. Once the bolts are removed, carefully detach the fan from the water pump by pulling it straight off. Be cautious of any coolant that may spill during the process.