Which action is taken last during the water pump replacement process?

The last action taken during the water pump replacement process is to attach the belts. This step is crucial because the belts, which are responsible for driving various components of the engine, need to be installed after all other components, including the water pump and gasket, are securely in place.

When you replace the water pump, the process typically starts with draining the coolant to prevent spills and damage. Following that, the old pump is detached, and a new gasket is installed to ensure a proper seal and prevent leaks once the new pump is mounted. Only after these tasks are completed is it appropriate to reattach the belts, as they will require proper tensioning and alignment with the newly installed components. This logical sequence helps to ensure a successful installation and operation of the water pump assembly.