No heat through heater, Solved! Options

[rapid36]

Hi there! I have a 1994 celica ST. I put in a 3 core all alunimum radiator and my car started overheating. It was overheating from air being in the system. I blead it out (as far as i know) and my over heating went away. now i dont have any heat coming out of my heater. I only get warm air. my inlet hose going to the heater core is hot and my outlet hose coming from the heater core is warm but no where near hot much like the air coming out of my vents. I pulled off the in let hose and verified that the heater valve was working and it is. I took off the outlet hose and stuck my garden hose into the inlet side for the heater core and turned it on full blast, there was great water flow going through it. Then I checked the blender door by change the heat to cool very quickly and heard the blender door opening and closing. My coolant was topped off as well. The only thing i can think of is air being in the heater core. I jacked up the front of the car and let the air bleed out. I think this is the correct way to bleed out a system.

This post has been edited by rapid36: Jan 13, 2015 - 10:07 PM

[Box]

The OEM radiator is notorious for cracking and failing, especially since they're so old now. Taking a picture of the cap won't make a difference, one can look perfectly fine but it'll be defective. And yes the cap works at all times. Also air pockets will cause a false read on the coolant gauges. Well if the OEM cap doesn't fit I guess you're stuck with what you have. One way to test the cap is let the car run and warm up, and carefully go to remove the cap. If nothing happens it's bad, if it starts to spew it's good.

This post has been edited by Box: Jan 9, 2015 - 6:08 PM