My daughter had an 81 Chevy Citation and I was surprised to hear that the tailpieces of the heater core to which the heater hoses connected were plastic.
1) How long has this been going on ? 2) How many other car makers do something this stupid ? 3) Is this a cost cutting measure on the manufacturer's part ? Must be since I read that the replacements come as all brass like years ago. 4) How common is it for these to break on older cars ? 5) Is the only fix a heater core replacement = $$$$ ?TIA