how can I be sure it is my radiator leaking and not my heater core? on 1994 Ford E-150

I can't see where it is leaking exacly when I put fluid in it pours out as fast as it goes in

by in Wilmington, DE on July 09, 2013
3 answers
ANSWER by on July 09, 2013
We can easily tell by pressure testing the cooling system. The average cost of diagnosis is about $25
ANSWER by on July 09, 2013
agree with #1
ANSWER by on July 09, 2013
Is it leaking out in the front near the bumper onto your feet as you fill the rad. or at the rear near the firewall/windshield area? Got to be able to narrow it down some, IF it leaks that bad! Let a helper pour some water in while you watch where it comes out at.