For some odd reason on my 91 accord, the upper radiator holes get hot but not the lower one. Also, there is no or not a lot of pressure. Does anyone know if this is NORMAL??? My interior heating isn't so great either...

 

Probably a thermostat, and possible heater core.

 

yeah you might have a sticky one and wont pop open. Does the car over heat? take out you thermostat and put it on your stove and heat it up if it doesnt open you might need a new one.

 

is the temp guage staying low or going up to the hot mark? if the temp needle is staying low, the car is taking forever to warm up and u r not getting much heat then id say its the thermostat. it can be sticking mostly open. it the temp needle is in the hot range then its stuck shut and u will over heat. if the needle is bouncying around and not much heat then its stuck open. i wouldnt bother with the stove thing. thermostats r cheap and easy to replace it would be a waste of time to check it.