Follow up on my heater core. Finally received it Core arrived Nov 15, so it took about a month. It looks to be the correct core judging by the in and out tubes.
Problem right now is that I can't get at the old one. Having a hard time removing the heater box. Unhooked AC, removed a lot of fasteners but it still won't budge. Must be a hidden fastener somewhere holding it. I have a Haynes manual. In this case it seems a little difficult to decipher.
Did you remove the nuts from the firewall inside the cabin?
Also, there is a linkage rod that passes through the firewall. Make sure you tie a string to this linkage under the dash, so that the string gets pulled through the firewall as you remove the heater box. Using the string to pull the linkage back through the firewall during assembly will make your life much easier.
Its got screws into the blower fan box and studs going through the firewall, you'll have fun finding them all without a factory manual. Then theres the blend door linkage which is simple to unhook but tricky to maneuver back into place. Even when you get it unbolted/unhooked the upper radiator support makes this job a real PITA. Getting that box back in was much harder than getting it out. The pics I posted in this thread may help a little.
I'll bet. I didn't expect this would be easy or fun.. I've only seen a few American vehicles where the heater box/plenum was directly accessible and they were made in the '60s.
Replacing the heater core on my 1988 Crown Victoria I had to pull the dashboard completely out about 10" and that required dropping the steering column. Both front doors had to remain fully open the entire time. I didn't have a garage at the time so had to do the job in the Autozone parking lot. That was 12 years ago but I still remember it was a very, very long day.
Thanks for all the tips. I did remove the screws and nuts inside cabin under/behind the glove box. Lucky I get to drive the wife's car until I get er done. It's below zero here this week.
Back in the day I had a '80 Dodge shorty van B100 with the 225 six. I replaced heater core on that one and if I recall correctly there were about 10 hex screws holding down a cover. All the screws were easily accessible and once cover was off, heater core was right there, easy to remove and replace. That was one of my favorite vehicles but she rusted away.