No , if you were to bypass the heater core , you would have no heat
behind the dash....
What engine do you have?
in the gas tank
yes. it is located behind the dash
you will have to have this evac by a a/c tech.
did the heater core start leaking? anyway you should have no problem with the air if you bypass the heater core.
Not to be disrespectful, however you just answered your own question...if it's a V-6, there are 6 spark plugs!
Get under the car