Don't let them do it they will charge you around $250 for the same repair!
Your heater core is leaking in it's housing box and blowing moist air through the heater/defroster. Try bardall radiator stop leak. If no help, install new heater core. Chuck.
no
Why the heater or defroster may not work in a 1993 Chevy Caprice Classic because of the heating core is going out.
where is the heater core for a 1992 bonniville
Yes they have a heater/defroster.
Begin by training the water from your 1997 Pontiac Bonneville cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
If you mean "why", then the answer is that there is a leak in the heater core.
The heater core is leaking coolant.
On a 2003 Bonneville, the hose to the water pump that is the heater inlet hose is the top hose coming from the radiator. This is also the hose that holds the thermostat.
I would like to have a dimgram to show me how to put the hater core out and in on my 94 Pontiac Bonneville
Yes, as long as you connect the incoming and outgoing heater hoses that were connected to the heater core together. You will not have a functioning heater or defroster but otherwise it will be fine to drive.
At the passenger's side firewall