i have already posted this, but i have found a few new things since then so im just gonna make a new topic so theres not too many questions.

my car is a 93 integra (b18b)

im having trouble figuring out whats wrong with my whole heating system.

i have replaced my rad. and thermostat and RE-replace my thermostat ( tested it first and its working )

my car blows Hot (normal) after about 15 minutes after driving. the temp. guage is half way where it should be. but my lower rad. hose never gets hot. its cold as ice even after 30 minutes of driving. upper one gets hot.

i figured there was air in the system so i opened up the bleeder and just a ugly foam came out. no coolant ever did. but it doesnt look like there is coolant in my oil.

i checked and both my valves are open ( under the dash and hood ) i flushed the whole system a few months ago.

what do you guys think it could be ? bad head gasket. bad water pump im out of ideas i need some help

 

anyone?