Chevrolet Repair: chevy blazer, chevy blazer, heater core

Question
I have anti freeze all over the front of my passenger side floor.  Is it the heat core and how do I get to it.  Inside the compartment or through the engine?

Answer
Hello Theares,
Sounds like there is a good chance it is the heater core, or a hose to it.
How you get to it depends on the year of your Blazer.
In the regular trucks, some need the complete heater unit removed to get to it, and some have an access cover where it can be replaced without removing the housing.

Van