95 SI  1995 Honda Civic  How the heater core connected to heater
valve? where is the heater line located? Is there any way i can
take out the heater core or valve to inspect a heater line tht
leaks untifreeze undernet my dush board? Asked by October 11,
2006. They go in to the firewall from the back side of the
engine. The line feeds from just on the left side of the intake
manifold. I would find a repair manual from either the public
library or buy on from the parts store. Best tool you can
purchase.  Bruce Hunt October 11, 2006.