1995 Honda Civic Heater Line Leak

Suggested Repair

The heater lines enter the firewall from the rear of the engine, with the feed just left of the intake manifold. Consult a repair manual before removing the heater core or valve to inspect the line leaking antifreeze under the dash.

Conversation Summary

The owner of a 1995 Honda Civic Si asked how the heater core connects to the heater valve, where the heater line is located, and whether the core or valve can be removed to inspect a line leaking antifreeze under the dashboard. The expert said the lines enter the firewall from the back of the engine and feed from just left of the intake manifold, and recommended using a repair manual.