what are the steps I need to do to replace the heatercore? on 1990 Chevrolet Cavalier

I need to know the steps i need to take after deasselbling the dash?

Asked by for the 1990 Chevrolet Cavalier
1 answer
if you already disassembled the dash, you just need to recover refrigerant from lines, drain coolant and remove the vent box assembly and disassemble it.