heater control valve is leaking
Do it from underneath. Drain the cooling system and cut the short hose between the heater core and the valve with a sharp knife. Unfasten the actuator cable, loosen the clamp on the heater hose and work the heater hose off it. Use the sharp knife to slice the remains of the short hose off the heater core... be gentle because the soft pipe is easily deforned (which is why you must not try to wrench it off). Put a replacement hose on the new valve and reassemble. When you refill the cooling system be sure to purge the air by opening the bleeder nipple on the upper radiator hose housing at the engine until a steady stream of coolant comes out. Watch out for the sharp edge of the catalytic converter shield! I have a scar on my wrist from learning that the hard way. EDIT - I forgot to mention - if the cable seems to be misadjusted on the valve when you are done, remove the passenger side of the console and look at the mixer linkage in there. The cable housings often slip in the clamps.
Honda guy has the terrific answer, yet I also have a pair issues to characteristic. whether that is like my daughter's 1993 Accord, that is extra handy to do from under the vehicle than above it. if so the converter warmth safeguard is close by and it badly decrease my wrist whilst i attempted to get the valve hose off the heater center - placed a rag on that depraved concern. Be very mushy whilst wrestling the hose off the heater center pipe that sticks interior the process the firewall - the pipe is skinny brass and easily deformed. that is terrific to diminish the hose lengthwise and peel it off, and wait and notice. you will opt to interchange that little bit of hose besides. EDIT - one extra concern. After refilling the coolant, discover the nipple (in all probability on the thermostat housing) for bleeding the trapped air out of the cooling device. Open it a million/2 a turn and close it whilst a mushy flow of coolant comes out. correct up the radiator - keep in mind, constantly use ideal coolant diluted in accordance to instructions with purified water, under no circumstances faucet water. existence is sturdy.
