How to Replace a Water Pump

Below guide will teach you How to Replace a Water Pump. Please follow the instructions carefully.

Things You’ll Need:

  • Screwdriver
  • Cooling System Pressure Tester
  • Scraper
  • Socket and Ratchet Set
  • Needle Nose Pliers
  • 3/8 in. Drive Ratchet
  • Water Pump Gasket
  • Water Pump

Estimated Costs:

  • DIY Costs: Est. $220.38 parts only
  • Shop Costs: Est. $457.68 parts and labor


  • Make sure that the engine is cold. Prop the engine hood up.
  • Take the radiator cap off.
  • Using a cooling system pressure tester, test the radiator for any possible leaks.
  • Carefully examine the water pump for any signs of leaks.
  • Put a drain pan at the bottom of the radiator and unplug the radiator drain plug.
  • Take the serpentine belt and drive belts away.
  • Disconnect the hoses that are attached to the water pump.
  • Unfasten the bolts holding the water pump in place and take the water pump out.
  • With the help of gasket scraper, wipe off the mounting surface on the engine block.
  • Place a new gasket on the mounting surface of the engine block and position the new water pump properly on it and secure the water pump with bolts.
  • Reattach all the hoses and belts that you removed earlier.
  • Put the drain plug back to the radiator.
  • Take a mixture of 50% distilled water and 50% antifreeze agent and fill the radiator reservoir. Make sure that the mixture reaches up to the MAX mark.
  • Perform pressure test to check leaks.
  • Turn the engine on and wait for few minutes and again check the coolant level. Add more, if required.
  • Recap the radiator and take a small drive.
  • During drive, keep an eye on the temperature gauge. It should not move to hot. Otherwise make necessary adjustments.

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