i have a 1995 chevy blazer 4.3 i,m replaceing the heater core but how do i

[bigjim2119]

remove the bottom heater box bolt? what is the easiest way to remove the bottom heater box bolt from the firewall under the hood in order that i may replace the heater core i got the 3 bolts out but cannot get a wrench on the bottom bolt to remove the heater box i have a 1995 chevy blazer 4.3 vortec i need to know tonight if possible

 

[christian]

remove inner fender, or drill a hole in it.

 

[Chev M]

your going about the wrong way the way you are going is to remove the ac the heater core is removed from inside drivers compartment all you got to do is loosen the dash pad to gain access to heater core