How To Replace the Water Pump in a 2001 Silverado 2500

Your water pump plays a crucial role in the efficiency of your engine’s cooling system. A faulty or leaking water pump can easily cause your Silverado’s engine to overheat, and can lead to significant and costly damage.

If your water pump is failing and needs to be replaced, refer to these nine easy steps to ensure you replace it properly and get your Silverado back to performing.

Tools Required:

  • Gloves
  • Adjustable wrench
  • Pliers
  • A container capable of holding at least 1 gallon of fluid

Removal Procedure

1. Before doing anything, disconnect the negative battery cable.

2. Locate the drain plug underneath the radiator, place empty container below the radiator, and remove the drain plug to drain the coolant out of the radiator.

Important: If you plan to re-use the same coolant, make sure to use a clean container, and the coolant remains clean.

3. Disconnect all engine components from the water pumps, including: air outlet ducts, radiator hoses, surge tank hoses, heater hoses, fan blade and clutch, and the accessory drive belt.

4. Once all engine components are disconnected from the water pump, loosen and remove the bolts holding the water pump in place. Once the pump is removed from the block, there will be two gaskets that could either remain stuck to the water pump or the block. Remove and discard both gaskets.

Installation Procedure

1. Prepare the new water pump for installation.

Important: All gasket surfaces should be clean of oil and other residue, including metal splinters. Unless instructed otherwise, install the new gaskets onto the surface in a dry state, using no sealants. A very small dab of high temperature sealant may be used to help the gasket stay in place.

2. Apply the new gaskets to the new water pumps, and position the water pump in place. Once positioned, align and tighten the mounting bolts, ensuring the gaskets remain securely in place.

3. Reconnect all engine components to the new water pump, ensuring they’re positioned and tighten securely.

Important: if any hoses are found to be torn, or clamps are worn out, it is recommended you replace these at this time.

4. Once all engine components are back in order, reapply the radiator’s drain plug, and fill the radiator back up with coolant. Be sure to rid the radiator and cooling system of any possible air pockets.

5. Reconnect the negative battery cable, and start your Silverado to ensure proper installation and operation of the new water pump.

Important:Check for any possible leaks that may occur due to a loose hose connection.

You’re finished, nice job! Now you can hit the road with the peace of mind in knowing your Silverado is running nice and cool.