Heater Core Replacement Question

Lynx331

New Member
Jan 5, 2004
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Chicago IL
I have a 87 mustang that i am replacing the heater core on. I have the whole dash apart. But does anyone know how the heater assembly comes off the fire wall so i can get the cap off for the heater core?
 
If you're positive you have all the bolts/nuts out, spray a little powerlube or wd40 on the rubber firewall grommet, and lightly tap the 2 firewall bolts and old core ends with a hammer. you will be surprised how tight that little rubber peice will hold that core in there.
 
I JUST DID MY HEATER CORE IN MY 90 LX

there are 2 studs that go through the fore wall and there are two bolts that hold the assembly on the inside.....did you pull your whole dash out? it makes it easier to get to everything. those 4 small bolts that hold the heater core cover on are a pain in the a$$ too if the dash isnt taken out completely