Guys/Gals, I have a really strange problem with the heating in my 91’ Chevy Suburban. For some reason, the heat will not work when I close the hood. I’ve burped and flushed the radiator, heating core, checked the blend doors/actuators, you name it. The only other thing I can think of that it might be, is the thermostat.
Any ideas as to what to do and why the heat works when the hood is open, but not closed? Thank you!