The heater core may be plugged if the inlet hose feels hot and the outlet hose feels cool.

Name: The heater core may be plugged if the inlet hose feels hot and the outlet hose feels cool.
Brand: Quizplus
Rating: 4.9 (41 reviews)

Question

Quizplus · Accepted Answer

The heater core functions by transferring heat from the engine's coolant to the cabin air. If the inlet hose is hot and the outlet hose is cool, it indicates that the coolant is not flowing properly through the heater core, likely due to a blockage or plugging.

The Heater Core May Be Plugged If the Inlet Hose