I've been searching for the answer and got good places to check but now im running out of option's. I am loosing coolant, which is causing the car to heat up right so I checked for leaks, there are no leaks. so I changed the thermostat, rad fan switch, I checked the oil cap for any blowback to see if it might be the head gasket, nice and clean the eng does not bog down, nore any moisture coming from the exhaust. but I have notice there is a little liquid but the egr valve. is there a gasket there that could be leaking?? also I have not pulled the IAC valve from the throttle body. Could this be were its leaking in?

o and there is no oil to coolant mixture in either the oil or the rad.

I want some input before I start tearing more apart. pls anything will help maybe some one had this problem.

its a 2001 Honda civic ex (d17a2) stock motor

 

try putting your heating on the highest setting and check if your getting real hot air or not