I have an '86 Grand Prix and I've recently had to start using the heater again. When I turn on the heater, steam comes out of all vents and it smells badly like anti-freeze. Is my heater core gone? How hard/long of a job is it to change out? Should it only be done with new replacement parts. or is a salvage yard a good place to look for one?
Any help would be appreciated.
Thanks Duane