Originally Posted by exasemech

You evidently have a 2000 ; I recently replaced the heater core on my 2000. Here's a few thoughts. I'm sure other folks may add.. Or differ
in no particular order.
-Before you do anything disconnect battery
--probably want to replace evaporator while you are in there
-soak the 5 studs/nuts that hold the hvac box to firewall with Kroll oil for a week before you start. Get a 7/16 (11mm) flex head ratcheting end wrench for the nut behind the head.
-i didn't take out the seats
-dont't need to remove steering wheel, just tilt it down before dropping steering column
-When you split hvac box do it very slowly and carefully so that weird little plastic flap inside ( not the blend door,that's easy, the other little loose flap )stays in place so you don't have to figure out where it goes
you will need to discharge the a/c so if you don't have the gear etc to do that you need to arrange to have that done.
Take your time plan 2 days . you don't want to need to do it twice.
like most things on here....
Mechanic A says
Mechanic. B says

Multiple choice.. Who is right
A
B
Both
Neither
(for those of you who have taken those tests)