First of all, the cooling system has to be drained, and several components such as air cleaner assembly, fan or 
Fan Clutch assembly, drive belt, and water pump pulley need to be removed. In the case of fuel-injected models, the cooling system should be drained and then release the fan or fan clutch assembly, release the drive belt, and remove brackets and accessories that hold onto the water pump bolts. Also, disconnect hoses, remove bolts, and take out the water pump for replacement. During installation apply RTV sealant to new gaskets carefully positioning them and tightening bolts.