[P1ttman]

I have a 2005 Honda civic lx 1.7 I have replaced the thermostat, radiator cap, radiator, all the hoses and clamps. The oil does not look like a milkshake and there is compression when I take the radiator cap off. The reservoir keeps filling up and seems to be blowing out of the reservoir cap. I have to constantly add coolant and lasts 3 days before the temp gauge starts to peak and my air conditioner will not be cold and my heater does not heat up and that's when I usually have to check my coolant? Any ideas? Have not yet check for blown head gasket because it does not stay over heated and I have bled the air out for long periods it keeps acting like air is getting into the system.

[odinn7]

If you are sure you bled the air out and followed the Honda procedure for bleeding, there is only one thing left that will cause this and that's a bad head gasket.

[TxGreaseMonkey]

Classic signs of a blown head gasket. Be sure to have the head and valves checked by a knowledgeable machine shop, before replacing the head gasket. These situations often develop by not following the procedure in the Owner's Manual on how to properly drain and refill the coolant.