How to Replace an Expansion Tank

Below guide will teach you How to Replace an Expansion Tank . Please follow the instructions carefully.

Things You’ll Need:

  • Flashlight
  • Screwdriver
  • Socket and Ratchet Set
  • 3/8 in. Drive Ratchet

Estimated Costs:

  • DIY Costs: Est. $0.00 parts only
  • Shop Costs: Est. $118.58 parts and labor


  • Make certain that the engine is cold and the vehicle is parked on a level surface with parking brake applied.
  • Prop the engine hood up and look for the radiator.
  • On the radiator, find overflow hose as this will guide you to the expansion tank.
  • Examine the expansion tank carefully for sings of leak.
  • Discard the radiator overflow hose and allow the fluid drain out of the expansion tank.
  • Unfasten the bolts holding the expansion tank in place and take the tank out.
  • Take a new expansion tank and position it properly into the engine compartment.
  • Secure the expansion tank with bolts. Reattach the radiator overflow hose to the expansion tank.
  • Add coolant to the radiator and expansion tank up to the required mark.
  • Examine the tank for any leakage.
  • Turn the vehicle on and recheck the expansion tank for signs of leak.

Further Reading

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