Heater Hose Replacement
How are heater hose issues diagnosed?
Heater hoses must be replaced when, at any position on the hose, there is an engine coolant leak or obvious swelling. Also, replacement will be recommended if the hoses are cracked, or worn down by prolonged contact with warm or vibrating engine components.
How is a heater hose replaced?
The coolant is drained from the engine in preparation for servicing the engine cooling system. Clamps will be removed from the ends of the hoses, and the hose will be removed from the heater core and engine. The inlet and outlet flanges on the heater core and engine are cleaned in preparation for installation of the new hoses.
RepairPal Recommendations for heater hose issues
If the vehicle is equipped with a heater control valve, it may be a wise choice to replace it as preventive maintenance. If the heater hose is swelling, the hood should be left closed until the engine is cool. A bursting hose can lead to severe scalding.
Can I replace the heater hose myself?
Yes, heater hose replacement is an excellent DIY project. The informed DIYer more than likely has the experience and know-how to change hoses, belts, and several other maintenance items, without causing damage, or injury.