I have a 1992 Chevy 454 P30 class A Fleetwood flair and noticed an antifreeze drip on the ground. I traced it to the heater core passenger section (not coming from radiator). I also have been living with very little heat, so I'm pretty sure its the heater core.
A. Can I replace it myself? I have tools and time but never done it before. If its accessible without removing body panels, I confident I can do it. I would need to find or be provided with some instructions.
B. Where would I find the replacement? Is it a common part that is still manufactured? Or one that will work as replacement?