How to Replace Heater Core Hoses

Below guide will teach you How to Replace Heater Core Hoses . Please follow the instructions carefully.

Things You’ll Need:

  • Heater Hose
  • Hose Clamp
  • Screwdriver
  • Cooling System Pressure Tester
  • Drain Pan
  • Socket and Ratchet Set
  • Hose Clamp Pliers

Estimated Costs:

  • DIY Costs: Est. $22.55 parts only
  • Shop Costs: Est. $89.85 parts and labor

Image may not be specific to your car


  • Lift the hood and find the heater core hoses.
  • Examine carefully and see if there are any sings of leak.
  • You can opt for pressure test to locate the leaking point.
  • Evacuate the cooling system and unfasten the hose clamps.
  • Take the damaged hose out of the heater core.
  • Take a new hose and install it in the place of leaking hose.
  • Fill the cooling system with fresh coolant.
  • Apply pressure test to check for leak again.
  • Turn on the engine and let it remain idle for some time. Recheck the system for any leaks.

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