HEATER CORE LEAKING

[BUICK20]

CAN ANYONE TELL ME WHY MY 94 BUICK ROADMASTER IS LEAKING FROM UNDER THE HOOD FROM A HOLE BESIDE THE HEATER CORE HOSES? SOON AS I CRANK MY CAR FLUID IS RUNNING OUT FROM IT

 

[MelsRegal]

The title of your post is heater core leaking and that is the problem, the heater core inside that box has a hole in it. The hole is normally for AC condensation to drain out.

 

[BUICK20]

The title of your post is heater core leaking and that is the problem, the heater core inside that box has a hole in it. The hole is normally for AC condensation to drain out.

So instead of it leaking inside its all outside the car on the ground it's not normally suppose to leak everything out of it i never had this problem before if busted I thought it leak inside the car

 

[MelsRegal]

Did you look under the passenger carpet?

 

[BUICK20]

Yes I did its dry even crank the car and let it run its just flowing outside not inside

 

[-Regal-]

If it's flowing immediately it's probably a hose on the outside. If the heater core you'd likely notice it inside and even if it was, it wouldn't likely leak until warmed up and the system is pressurized. I can't tell nothing from the pictures.

 

[BUICK20]

Checked the hoses their fine it's coming out of the hole beside the AC lines thought it was from the heater core hoses but I've double checked it's coming directly from the hole beside AC line I'm gonna pull the dash out and check the heater core

 

[BUICK20]

 

[1992RML]

View attachment 19853

That is where the A/C condensation is to exit when the A/C is in use . Is it anti freeze that is leaking out ? If you run the heater at lower temperatures like 70 on up the A/C will run I believe to adjust the temp which might explain it . Find out if its anti-freeze first

 

[BUICK20]

That is where the A/C condensation is to exit when the A/C is in use . Is it anti freeze that is leaking out ? If you run the heater at lower temperatures like 70 on up the A/C will run I believe to adjust the temp which might explain it . Find out if its anti-freeze first

Yes it's antifreeze I filled up my resovoir 2 days ago check it when I got off work and it's completely drained out from the hole that's for the A/C I don't know what's going on haven't had time to mess with it again I will try to make a video to show what's wrong.

 

[1992RML]

From what you have descibed that anti freeze is coming out of the A/C condensation rubber drain plug then it is more than likely your heater core . The heater core for these models is usually $30-50 brand new . The installation is not to difficult but uncomfortable as you will be working under the dash from what I have read. And removal of hoses in engine bay is difficult. I posted a video to give you an idea of what you are up against , I hope it helps. Good luck and keep us updated .