How do you change heater core on a 1995 Chevy Corsica?

Answer 1

DON'T DO IT , THIS JOB TAKES A LOT OF TIME, DRAIN FIRST, THEN DISCONECT DRAIN HOSES FROM HEATER CORE , YOU WILL HAVE TO JACK UP UNIT HIGH ENOUGH SO YOU CAN WORK WHILE YOU UNDER THE CAR, IF THIS HAS NEVER BEEN DONE BEFORE THE PLASTIC HOSE FROM THE HEATER WILL BREAK OFF INTO THE HOSE AND THERE IS ANOTHE JOB FOR YOU GETTING THAT OUT, NEXT IS THE DASH AND ALL THE LITTLE SCREWS YOU WILL HAVE TO TAKE OUT , GOOD LUCK WITH THAT, THE BLOWER COVER WILL NOT COME EASY NOR WILL THE HEATER COVER , IT WILL BREAK FOR SURE , AFTER HOURS OF LABOR IN TAKING OFF AND FINDING THE SCREWS IN THE HEATER COVER . THE NEXT THING YOUR NEW HEATER CORE , MAKE SURE THE NEW CORE GOES THE SAME WAY , COMPARE THE TWO, THE HEATER HOLES IN THE FIREWALL WILL TO SMALL , YOU WILL HAVE TO ENLARGE THEM TO MAKE THEM GO THRU . NOW BACK TO THE SCREWS AND PUTTING ALL BACK TOGETHER GOOD LUCK AGAIN , LAST THING BACK UNDER THE CAR TO CONNECT BOTH HOSES WITH NEW CLAMPS , AND NEW ANTI-FREEZE , BETTER OFF GOING TO SHOP !!!